Wednesday, October 23, 2019
Language Development in Exceptional Circumstances
ââ¬Å"Ever since attempts have been made to describe and explain normal language development, references to exceptional circumstances have been made. â⬠(Bishop & Mogford, 1988: v) Language development in exceptional circumstances refers to cases of child language acquisition which are considered as departing from the norm. In the following, five types of exceptional circumstances will be taken into account; that is: the case of neglected children, the case of hearing children brought-up by deaf parents, the case of bilingual children, the case of twins, and the case of children affected by Williams syndrome. This is by no means a full consideration of all existing exceptional circumstances for language development; rather it is a selection of the cases which I find most revealing to gain insight into normal language development. Indeed, in the light of the aforementioned exceptional circumstances, we will be able to draw understandings about language development in its unexceptional nature, such as its relationship to environmental factors (I) and to other cognitive devices (II). First of all, exceptional circumstances can provide important evidence relevant to the role played by the verbal environment in child language acquisition. Neglected children, hearing children brought-up by deaf parents, bilingual children, and twins, are all faced to a certain form of restricted verbal stimulation. For instance, Marie Mason (1942) reported a case that concerned a neglected child, Isabelle, who had been kept in seclusion with her deaf and mute mother because she was illegitimate. They spent their time in a dark room shut away from the family who had rejected them, and Isabelle was completely deprived of language until she gained her freedom at the age of 6. Children of deaf parents are also limited in their exposure to spoken language, although in the context of otherwise normal social, communicative and environmental stimulation. As for children who are brought-up bilingual and as twins, verbal stimulation is similarly impaired, the former because their exposure to one particular language is reduced ecause they must deal with two languages simultaneously, and the latter because one familyââ¬â¢s linguistic resources are shared between two infants in the same developmental stage. Yet, just as Isabelle went on to develop normal language in only 18 monthsââ¬â¢ time after gaining her freedom (Skuse, 1988: 33), children of deaf parents, bilingual children, and twins, also develop normal language over time, albeit the adverse circumstances. This provides evid ence of resilience of language acquisition. Indeed, the fact that these children, despite such unfavourable circumstances, ultimately achieve linguistic proficiency (not unlike an ordinary child) tells us that children learn language despite a restricted language input, meaning that innate language abilities must have a substantial role in normal language acquisition. In this sense, exceptional circumstances indicate that the principles of language development advocated by behaviourists are quite inadequate to explain how the child develops language, and provides evidence in favour of Noam Chomskyââ¬â¢s theory of Universal Grammar. Conversely, however, exceptional circumstances do provide some evidence of the importance of the verbal environment for normal language development. For instance, Genie, another neglected child who was discovered at 13 years of age after having been locked in a small room and beaten by her father whenever she uttered a sound, never fully recovered from the deprivation of language in her early years. Although she is now 55 years-old, she never acquired true linguistic competence. This gives evidence for the existence of a time window during which external influences have a significant effect. Just as songbirds will learn to sing the appropriate song for their species only if they hear that song in the first few weeks of life, there is a critical period for the child to successfully develop languageâ⬠(Bishop & Mogford, 1988: 252). This ââ¬Ëcritical periodââ¬â¢ is set from birth to sometime between 5 and 7 years of age depending on the individual, which is why Isabelle ââ¬âwho was 6 when liberatedââ¬â developed language readily, while Genie ââ¬âwho was 13ââ¬â did not. Therefore, exceptional circumstances provide insight into a critical period for language development after which failed experiences in infancy cannot be compensated. Moreover, exceptional circumstances can also provide insight into the relationship between language and cognition. In this section, we shall consider the case of children affected by Williams syndrome. Williams syndrome is characterized by a sophisticated use of language with complex syntax and adult-like vocabulary in individuals who otherwise demonstrate no evidence of concrete operational behaviour on Piagetian tasks, and whose overall level of mental development is below that of a 7-year-old (Jones & Smith, 1988: 248). In other words, Williams syndrome children are mentally retarded, yet they demonstrate impressive lexical semantic abilities, complex expressive morphology and syntax, and good metalinguistic skills. For instance, three Williams syndrome adolescents were investigated: Van (age 11), Crystal (age 15), and Ben (age 16). Their full-scale IQ scores on traditional intelligence tests were: Van, 50; Crystal, 49; and Ben, 54. However, their scores on formal tests of language were higher than performance on non-language cognitive tasks (Bishop & Mogford, 1975: 182). This relative sparing of language in the face of other cognitive impairments is particularly revealing about the relationship between language and cognition in that it implies that there is dissociation between language and other cognitive functions. Similarly, it may be particularly striking that, in patients of global aphasia, which is a severe language disorder, other cognitive skills remain functioning, affirming that language faculty is indeed a separate domain (Saffran et al). Therefore, the exceptional case of Williams syndrome children, and the rather converse instance global aphasia, indicate that normal language development is not directly related to intelligence, hence why language is acquired rapidly and uniformly by all ââ¬Ënormalââ¬â¢ children, irrespective of intelligence. In conclusion, language development in exceptional circumstances stands as a window into the analysis of normal language development. In the words of Gary Dell: ââ¬Å"the inner workings of a highly complex system are often revealed by the way in which the system breaks downâ⬠(Baars, 1992: 5). Indeed, throughout this essay, the study of exceptional circumstances has provided us with evidence that, although language input has an important role in language development, it may be limited, given the Poverty of Stimulus argument. The study of exceptional circumstances has also evidenced the existence of a critical period for language development and made the issociation between language and other cognitive functions clearer. Nonetheless, one must bear in mind that a more in-depth study of exceptional circumstances, for instance one that would take into account infantile autism or Down syndrome children, would certainly provide us with further information about the components of normal language development. Unfortunately, given the time limitations for the realization of this essay, these aspects will be left for o thers to analyse.
Tuesday, October 22, 2019
AP Chemistry Syllabus What Does It Cover
AP Chemistry Syllabus What Does It Cover SAT / ACT Prep Online Guides and Tips What does an AP Chemistry syllabus look like? How many labs do you have to do? And what skills are you expected to learn before the test? In this article, I'll take an in-depth look at the components of a successful AP Chemistry syllabus, including content coverage, lab work, and overall curriculum requirements. I'll also give an example of a full syllabus (based on a sample from the College Board) and provide some helpful tips for both students and teachers! What Does the AP Chemistry Course Cover? AP Chemistry is a wide-ranging course. The curriculum is divided into six "Big Ideas," or major themes, that encompass long lists of smaller topics. I'll list the Big Ideas along with the smaller themes within them that the College Board calls "Enduring Understandings." These are actually broken down further into pieces of "Essential Knowledge," which (for the sake of keeping this article to a reasonable length) are not included here. There are also seven Scientific Practices that students are expected to master in the course, which I'll list after the Big Ideas. This is a part of the new inquiry-based model of AP science courses that encourages independent thinking. Finally, there are some overarching Curricular Requirements that every AP Chemistry class must fulfill, which I'll go over after the Scientific Practices. For the full course description with even more details, consult this link! The 6 Big Ideas of AP Chemistry The Big Ideas are the fundamental concepts every AP Chemistry syllabus must cover. Big Idea 1: The chemical elements are fundamental building materials of matter, and all matter can be understood in terms of arrangement of atoms. These atoms retain their identities in chemical reactions. Enduring Understanding 1.A: All matter is made of atoms. There are a limited number of types of atoms; these are the elements. EU 1.B: The atoms of each element have unique structures arising from interactions between electrons and nuclei. EU 1.C: Elements display periodicity in their properties when the elements are organized according to increasing atomic number. Periodicity is a useful principle for understanding properties and predicting trends in properties. EU 1.D: Atoms are so small that they are difficult to study directly; atomic models are constructed to explain experimental data on collections of atoms. EU 1.E: Atoms are conserved in physical and chemical processes. Big Idea 2: Chemical and physical properties of materials can be explained by the structure and arrangement of atoms, ions, or molecules and the forces between them. EU 2.A: Matter can be described by its physical properties. The physical properties of a substance generally depend on the spacing between the particles (atoms, molecules, ions) that make up the substance and the forces of attraction among them. EU 2.B: Forces of attraction between particles (including the noble gases and also different parts of some large molecules) are important in determining many macroscopic properties of a substance, including how the observable physical state changes with temperature. EU 2.C: The strong electrostatic forces of attraction holding atoms together in a unit are called chemical bonds. EU 2.D: The type of bonding in the solid state can be deduced from the properties of the solid state. Big Idea 3: Changes in matter involve the rearrangement and/or reorganization of atoms and/or the transfer of electrons. EU 3.A: Chemical changes are represented by a balanced chemical equation that identifies the ratios with which reactants react and products form. EU 3.B: Chemical reactions can be classified by considering what the reactants are, what the products are, or how they change from one into the other. Classes of chemical reactions include synthesis, decomposition, acid-base, and oxidation-reduction reactions. EU 3.C: Chemical and physical transformations may be observed in several ways and typically involve a change in energy. Big Idea 4: Rates of chemical reactions are determined by details of the molecular collisions. EU 4.A: Reaction rates that depend on temperature and other environmental factors are determined by measuring changes in concentrations of reactants or products over time. EU 4.B: Elementary reactions are mediated by collisions between molecules. Only collisions having sufficient energy and proper relative orientation of reactants lead to products. EU 4.C: Many reactions proceed via a series of elementary reactions. EU 4.D: Reaction rates may be increased by the presence of a catalyst. Big Idea 5: The laws of thermodynamics describe the essential role of energy and explain and predict the direction of changes in matter. EU 5.A: Two systems with different temperatures that are in thermal contact will exchange energy. The quantity of thermal energy transferred from one system to another. EU 5.B: Energy is neither created nor destroyed, but only transformed from one form to another. EU 5.C: Breaking bonds requires energy, and making bonds releases energy. EU 5.D: Electrostatic forces exist between molecules as well as between atoms or ions, and breaking the resultant intermolecular attractions requires energy. EU 5.E: Chemical or physical processes are driven by a decrease in enthalpy or an increase in entropy, or both. Big Idea 6: Any bond or intermolecular attraction that can be formed can be broken. These two processes are in a dynamic competition, sensitive to initial conditions and external perturbations. EU 6.A: Chemical equilibrium is a dynamic, reversible state in which rates of opposing processes are equal. EU 6.B: Systems at equilibrium are responsive to external perturbations, with the response leading to a change in the composition of the system. EU 6.C: Chemical equilibrium plays an important role in acid-base chemistry and in solubility. EU 6.D: The equilibrium constant is related to temperature and the difference in Gibbs free energy between reactants and products. This idea is huge by itself, and now you're telling me there are five more Sigh. Another day another dollar. The 7 Scientific Practices of AP Chemistry These seven "scientific practices" represent skills that students are expected to learn in AP Chemistry. Many of these relate to correct implementation of the scientific method in a lab context. They're especially tied to the "Guided Inquiry" labs, where students work independently to plan and conduct experiments. #1: The student can use representations and models to communicate scientific phenomena and solve scientific problems. #2: The student can use mathematics appropriately. #3: The student can engage in scientific questioning to extend thinking or to guide investigations within the context of the AP course. #4: The student can plan and implement data collection strategies in relation to a particular scientific question. [Note: Data can be collected from many different sources, e.g., investigations, scientific observations, the findings of others, historic reconstruction, and/or archived data.] #5: The student can perform data analysis and evaluation of evidence. #6: The student can work with scientific explanations and theories. #7: The student is able to connect and relate knowledge across various scales, concepts, and representations in and across domains. AP Chemistry Curricular Requirements The curricular requirements are concrete statements of expectations for the AP Chemistry course. These include requirements for the types of materials teachers must use in class, the structural framework of the course, the opportunities students should receive, and the percentage of class time devoted to labs. The course must use a recently published (within the past ten years) college-level chemistry textbook. The course must be structured around the Enduring Understandings within the Big Ideas as described in the AP Chemistry curriculum framework. Students should have opportunities outside of laboratory investigations to meet the learning objectives within each of the big ideas in the AP Chemistry curriculum. Students have the opportunity to connect their knowledge of chemistry and science to major societal or technological components to help them become scientifically literate citizens. Labs make up 25 percent of the instructional time at minimum and include at least 16 hands-on experiments. Lab investigations allow students to apply the seven science practices, and at least 6 of the 16 labs are conducted in a guided-inquiry format. "Guided inquiry" labs put students at the center of the learning process, encouraging them to pose, develop, and experimentally investigate questions (self-generated or supplied). Other more traditional labs are teacher-directed, which means that teachers provide not only the questions for investigation, but also set procedures and data collection strategies for student use. The course provides opportunities for students to develop, record, and maintain evidence of their verbal, written, and graphic communication skills through lab reports, summaries of literature or scientific investigations, and oral, written, and graphic presentations. Keep in mind that it takes a while for most students to learn how to hold presentation materials in ways that don't completely obscure their faces. Work on it. You'll get there, buddy. What Does an AP Chemistry Syllabus Look Like? The following is a summary of a sample syllabus supplied by the College Board that goes through all the units that would be taught in a standard AP Chemistry course. It also provides the number of class periods allotted for each unit. In this example, the class periods are 52 minutes long. You can read the full syllabus here, and there are also a few more sample syllabi on this page! Course Materials Primary Textbook Zumdahl, Steven and Susan Zumdahl. Chemistry, Eighth Edition. Belmont CA: Cengage Learning, 2012. Other Resources Used The College Board. AP Chemistry Guided Inquiry Experiments: Applying the Science Practices. 2013. Demmin, Peter. AP Chemistry, Fifth Edition. New York: DS Marketing Systems Inc., 2005. Vonderbrink, Sally. Laboratory Experiments for AP Chemistry. Batavia: Flinn Scientific, 2001. Randall, Jack. Advanced Chemistry with Vernier. Oregon: Vernier Software and Technology, 2004. Holmquist, Dan and Donald Volz. Chemistry with Calculators. Oregon: Vernier Software and Technology, 2003. Beran, Jo Allan. Laboratory Principles of General Chemistry, Seventh Edition. New York: John Wiley and Sons, 2004. Unit 1: Chemistry Fundamentals 12 Class Periods 10 Problem sets 2 Quizzes 1 Exam Topics Scientific method Classification of matter Nomenclature and formulas of binary compounds Polyatomic ions and other compounds Determination of atomic masses Mole concept Percent composition Empirical and molecular formula Writing chemical equations and drawn representations Balancing chemical equations Applying mole concept to chemical equations (stoichiometry) Determining limiting reactants, theoretical and percent yield of reactions Labs Math and Measurement in ScienceStudents learn how to measure mass and volume with varied pieces of equipment and focus on the accuracy of those pieces of equipment in their calculation and determination of significant figures. Students also determine the identity of an unknown organic liquid using density determination. Guided Inquiry Lab: Physical and Chemical PropertiesStudents are given the materials to conduct various procedures. They construct a procedure for each of the eight changes to be observed, have their procedures approved by the instructor, and then carry out the procedures. The data collected is used to develop a set of criteria for determining whether a given change is chemical or physical. Stoichiometry LabStudents determine the correct mole ratio of reactants in an exothermic reaction by mixing different amounts of reactants and graphing temperature changes. Unit 2: Types of Chemical Equations 8 Class Periods 4 Problem Sets 3 Quizzes 1 Exam Topics Electrolytes and properties of water Molarity and preparation of solutions Precipitation reactions and solubility rules Acid-Base reactions and formation of a salt by titration Balancing redox reactions Simple redox titrations Gravimetric calculations Labs pH Titration LabStudents perform a titration and then determine the concentration of an HCl solution by using a potentiometric titration curve and finding the equivalence point. Data is graphed in a graphing program. Bleach LabStudents perform redox titrations to determine the concentration of hypochlorite in household bleach. Online Redox Titration ActivityOnline lab simulation where students can manipulate various factors to influence a redox titration. Unit 3: AP Style Net Ionic Equations 8 Class Periods 6 Problem Sets 4 Quizzes 1 Exam Topics Redox and single replacement reactions Double replacement reactions Combustion reactions Addition reactions Decomposition reactions Labs Copper Reaction LabStudents perform a series of reactions, starting with copper and ending with copper. Students then calculate percent recovered. Unit 4: Gas Laws 8 Class Periods 5 Problem Sets 3 Quizzes 1 Exam Topics Measurement of gases General gas laws - Boyle, Charles, Combined, and Ideal Dalton's Law of partial pressure Molar volume of gases and stoichiometry Graham's Law Kinetic Molecular Theory Real gases and deviation from ideal gas law Graham's law demonstration Labs Molecular Mass of a Volatile LiquidStudents use the Dumas method for determination of the molar mass of an unknown volatile liquid. Unit 5: Thermochemistry 8 Class Periods 5 Problem Sets 3 Quizzes 1 Exam Topics Law of conservation of energy, work, and internal energy Endothermic and exothermic reactions Potential energy diagrams Calorimetry, heat capacity, and specific heat Hess's Law Heat of formation/combustion Bond energies Labs Guided Inquiry Lab: Hess's LawStudents perform a series of reactions and calculate enthalpy, proving Hess's law. Activity: Online Heating and Cooling Curve Simulations Unit 6: Atomic Structure and Periodicity 12 Class periods 9 Problem sets 4 Quizzes 1 Exam Topics Electron configuration and the Aufbau principle Valence electrons and Lewis dot structures Periodic trends Table arrangement based on electronic properties Properties of light and study of waves Atomic spectra of hydrogen and energy levels Quantum mechanical model Quantum theory and electron orbitals Orbital shape and energies Spectroscopy Labs Spectroscopy LabStudents look at a series of emission spectra and determine the identity of an unknown. They will also receive and analyze IR and mass spectroscopy data. Activity: Periodic Table Dry LabStudents graph values for atomic radius, electronegativity, and ionization energy to predict trends and explain the organization of the periodic table. Unit 7: Chemical Bonding Class Periods 8 Problem Sets 4 Quizzes 1 Exam Topics Lewis Dot structures Resonance structures and formal charge Bond polarity and dipole moments VSEPR models and molecular shape Polarity of molecules Lattice energies Hybridization Molecular orbitals and diagrams Labs Guided Inquiry: Bonding LabStudents experimentally investigate ionic and molecular substances deducing properties of their bonds in the process. Guided Inquiry: Investigation of SolidsStudents investigate types of solids using various experimental techniques. Activity: Atomic Theory Dry Lab (Students make drawings of a series of molecules and, from those drawings, predict geometry, hybridization, and polarity) Unit 8: Liquids, Solids, and Solutions 6 Class Periods 4 Problem Sets 2 Quizzes 1 Exam Topics Structure and bonding Metals, network, and molecular Ionic, hydrogen, London, van der Waals Vapor pressure and changes in state Heating and cooling curves Composition of solutions Colloids and suspensions Separation techniques Effect on biological systems Labs Solution Preparation LabStudents make solutions of specified concentrations gravimetrically and by dilution. Solution concentrations will be checked for accuracy using a spectrophotometer. Vapor Pressure of Liquids LabStudents measure the vapor pressure of ethanol at different temperatures to determine âËâ H. Activity: Effect on Biological SystemsStudents examine a demonstration size model of DNA or an alpha helix, and use their fingers to identify which atoms / base pairs are particularly involved in hydrogen bonding within the molecule, causing the helical structure. Students then discuss how the increased UV light because of ozone depletion can cause chemical reactions and thus mutations and disruption of hydrogen bonding. Unit 9: Kinetics 9 Class Periods 3 Problem Sets 3 Quizzes 1 Exam Topics Rates of reactions Factors that affect rates of reactions/ collision theory Reaction Pathways Rate equation determination Rate constants Mechanisms Method of initial rates Integrated rate laws Activation energy and Boltzmann distribution Labs Guided Inquiry: Determining Order of a (Crystal Violet) ReactionUsing colorimetry and Beer's law, students determine the order of a reaction and its rate law. Determining the Activation Energy of a ReactionStudents use the same set-up as in the crystal violet lab, but, this time, varying temperature to calculate the activation energy with the use of the Arrhenius equation. Activity: Online Kinetics ActivityUsing a web-based simulation, students will study the elementary steps of a mechanism and how it relates to reaction rate and collision theory. Unit 10: General Equilibrium 6 Class Periods 4 Problem Sets 3 Quizzes 1 Exam Topics Characteristics and conditions of chemical equilibrium Equilibrium expression derived from rates Factors that affect equilibrium Le Chatelier's principle The equilibrium constant Solving equilibrium problems Labs Determination of a Kc with Varied Initial ConcentrationsStudents use a spectrophotometer to determine the Kc of a series of reactions. Activity: Online Gas Phase Equilibrium ActivityIn the online inquiry activity, students are able to manipulate the environment and produce stresses that verify the tendency of Le Chatelier's principle. Unit : Acids and Bases 8 Class Periods 4 Problem sets 3 Quizzes 1 Exam Topics Definition and nature of acids and bases Kw and the pH scale pH of strong and weak acids and bases Polyprotic acids pH of salts Structure of Acids and Bases Labs Determination of a Ka by Half TitrationStudents do a titration in which à ½ of the weak acid titrated is neutralized (aka midpoint), and then the Ka is determined. Unit 12: Buffers, Ksp, and Titrations Class Periods 6 Problem Sets 4 Quizzes 1 Exam Topics Characteristics and capacity of buffers Titrations and pH curves Choosing Acid-Base Indicators pH and solubility Ksp Calculations and Solubility Product Labs Guided Inquiry: Types of TitrationsStudents investigate titration curves by doing titrations of different combinations of weak and strong acids and bases. Guided Inquiry: Preparation of a BufferGiven a selection of chemicals, students prepare a buffer of a given pH. Molar Solubility and Determination of KspStudents find the Ksp of calcium hydroxide doing a potentiometric titration with the addition of methyl orange indicator for verification. Unit 13: Thermodynamics 10 Class Periods 5 Problem Sets 3 Quizzes 1 Exam Topics Laws of thermodynamics Spontaneous process and entropy Spontaneity, enthalpy, and free energy Free energy Free energy and equilibrium Rate and Spontaneity Labs Solubility and Determination of ÃâHà °, ÃâSà °, ÃâGà ° of Calcium HydroxideStudents collect and analyze data to determine ÃâHà °, ÃâSà °, and ÃâGà ° of calcium hydroxide. Unit 14: Electrochemistry 8 Class Periods 5 Problem Sets 4 Quizzes 1 Exam Topics Balancing redox equations Electrochemical cells and voltage The Nernst equation Spontaneous and non-spontaneous equations Chemical applications Labs Voltaic Cell LabStudents find the reduction potentials of a series of reactions using voltaic cells/multi-meters and build their own reduction potential table. Dilutions will be made, and the Nernst equation will also be tested. Final AP Review 16 Class Periods 4 Quizzes 4 Exams Topics Review of ALL topics 4 AP-Style Review Exams Mock AP Test Labs The Green Crystal LabA series of labs completed over a 4-week period. Students work at their own pace in pairs. The goal of this lab is to determine the empirical formula of a ferrioxalate crystal. It includes the following experiments: Experiment 1: Synthesis of the crystal Experiment 2: Standardization of KMnO4 by redox titration Experiment 3: Determination of % oxalate in crystal by redox titration Experiment 4: Standardization of NaOH by acid/base titration Experiment 5: Determination of % K+ and Fe3+ by ion exchange chromatography and a double equivalence point titration Experiment 6: Determination of the % water in the hydrated crystal Green crystals!!! Actually, the green crystals for the lab look even cooler than that. Teaching Tips for AP Chemistry These are some tips I came up with for AP Chemistry teachers based on my experiences as a student in the course. I struggled a lot with chemistry in high school (partially because my teacher wasn't very good), so here are a few things that I think would have helped me out at the time. Tip #1: Do Plenty of Sample Problems in Class (and Go Over Homework Thoroughly) When I was in AP Chemistry, I had a hard time understanding how to solve complex multi-step problems. I often couldn't figure them out on my own, even when I had read examples in the textbook and seen my teacher go through similar examples. I'd advise teachers to do as many sample problems as possible in class. It's important to give students background information, but walking through sample problems step-by-step is the most valuable practical instruction you can provide. You should also go through homework problem sets in class so that students can see exactly where they made mistakes and why. Encourage students to try redoing the problems with the new information they've learned to reinforce the correct methods. Tip #2: Offer Extra Help Sessions Because AP Chemistry is such a challenging class, it's likely that many students will be interested in extra help outside of the designated class period. Although students should be encouraged to take the initiative in asking for help, I think it's also a good idea to set up a designated time when you'll be available after school. Block out a couple of after-school hours one or two days a week, and encourage students to come to you with any questions or concerns they have about the class. You can also set aside times for review sessions before each exam that all students are encouraged to attend. These could even include chemistry-themed review games and competitions (if your students are true nerds they will love this). Tip #3: Give Students Real AP Practice Tests To prepare effectively for the AP test, students need to get used to the format and timing. As you get closer to the exam, administer a few mock AP tests. Translate grades to where they would fall on the AP scale so that students have a better idea of where they're scoring and how much they need to study to reach their goals. This will help give them more motivation to study and force any stragglers to get serious about improving their scores. Grades on real AP practice tests will help light a fire under students who have a tendency to procrastinate and cram. Tips for AP Chemistry Students If, on the other hand you're an AP Chemistry student, you may find these tips for doing well in this challenging class helpful. Tip #1: Pay Attention in Class Obviously, right? Well, not necessarily; zoning out during lectures is something that we're all guilty of doing because we're human beings. However, this is a class where you really, really need to pay attention to your teacher's explanations. It's hard to self-teach chemistry because you're not just memorizing facts, you're learning how to do different types of calculations and navigate a bunch of new terminologies. If you can only pay attention to one thing, make it the example problems that your teacher does in class. Take notes on the solution steps so you can refer to them in the future and refresh your memory. Tip #2: Ask Lots of Questions (and Get Help If You Need It!) If you don't understand something, get clarification as soon as possible. AP Chemistry isn't a class where you can let a few things fall by the wayside and still get by. The information builds on itself, so it's critical that you have a strong understanding of every concept. Gaps in knowledge will come back to bite you in the end! If you don't feel like you're getting enough of an explanation in class, don't be afraid to ask your teacher for extra help. Tip #3: Don't Fall Behind It will be tempting to say "oh, I don't actually need to do this problem set" or "eh, I'll read this chapter later." But if you do that too many times, before you know it you'll have no idea what's happening in class. This course moves very quickly from one complex concept to the next, so you can't afford to fall behind. As I mentioned, concepts build on one another. If you find yourself slipping and losing touch with what's going on in the course, ask your teacher for extra help as soon as possible to resolve the issue. Tip #4: Get a Review Book, and Review Concepts Throughout the Year Review books can be very helpful for AP Chemistry because they're well-organized catalogs of all the different concepts you will learn in the course. There's so much packed into the curriculum that I'd recommend buying a book so you have something to ground yourself as you're looking back through the material. You can use the review book for practice problems and AP review sessions throughout the year. Every couple of months, do a review of everything you've learned so far to keep the information at the front of your mind. Here's my list of the best review books for AP Chemistry to give you a lil head start. Review books will lay out the structure of the course more clearly for you so that you don't get lost in your notes! Conclusion To recap, the AP Chemistry syllabus revolves around six "Big Ideas," which are main themes that cover more specific concepts called "Enduring Understandings." Each AP Chemistry course is expected to give students the skills they need to understand these larger themes and connect them to a basic factual knowledge of the ins and outs of chemistry. Additionally, an effective course syllabus provides assignments that enable students to master the seven "Scientific Practices" established by the course guidelines. It will also adhere to the rules established by the Curriculum Requirements. A few tips I would recommend for teaching this course are: #1: Do Lots of Sample Problems in Class#2: Offer Built-In Extra Help Sessions#3: Administer Official Practice AP Tests Some tips I would recommend for students who want to do well in AP Chemistry are: #1: Pay Attention in Class#2: Ask Questions, and Get Help if You Need It#3: Avoid Slacking Off and Falling Behind#4: Use a Review Book to Supplement Class Materials AP Chemistry is a fast-paced class that covers complex concepts, but with a logically formatted syllabus and a concerted effort from both students and teachers, the course can be an enlightening introduction to a fundamental aspect of how the world works! What's Next? Is AP Chemistry really as challenging as some people think? Read this article for a detailed examination of the difficulty level of the course (and exam). Need help preparing for the final exam? Check out my ultimate study guide for AP Chemistry! If you're taking AP Chemistry, chances are that you're applying to colleges that require or recommend submission of SAT Subject Test scores. Learn more about the differences between AP Tests and SAT Subject Tests and whether one is more important than the other. Want to improve your SAT score by 160 points or your ACT score by 4 points? We've written a guide for each test about the top 5 strategies you must be using to have a shot at improving your score. Download it for free now:
Monday, October 21, 2019
imperialism and race relations essays
imperialism and race relations essays A small Indian man by the name of Mohandas Karamchand Gandhi, or, more commonly known as Mahatma Gandhi, played the dominant role in securing the downfall of British rule in India. Not only did he play a pivotal role in creating an Independent India but he tried to do did it without guns or physical violence. Gandhis fight against racism and British rule in India began in South Africa when he was thrown off a train for being an Indian in a first class carriage. On returning to India he continued his goal of an independent India through policies of non-cooperation, non-violence and Satyagraha (Sanskrit for truth and firmness). Gandhi, the major leader for the movement for an Independent India was born in India. In 1988 he then went to the University College in London where he gained a degree in law and was admitted to the British bar. Gandhi, attempting to set up a law firm in Bombay had very little success. Two years later he was offered a job from a South African firm in Durban and on route to this new job he suffered major mistreatment, on the train, through injustice and racism. This sparked Gandhis fight for the rights and liberties of the Indian people. Gandhi stayed in South Africa for over twenty years, during which he gained much experience in battling colonial governments. The first being the Indian Franchise Bill passed in 1984. This meant that Indians had the right to vote withdrawn. Gandhi fought the Natal Government and managed to have little success. Although the act was changed, it was just the wording and it still did as it did before. During the Boer War Gandhi established an Ambulance Corp in support of the British after which he continued his campaign. In 1906 the Black Ordinance was introduced which meant that all Indians had to have in possession a certificate that could be demanded when ever. Gandhi opposed this with his policies of non-cooperation and satyagraha. Before Gandhi was ...
Sunday, October 20, 2019
Korean War - The Conflict in Korea
Korean War - The Conflict in Korea The Conflict in Korea"Never before has this nation been engaged in mortal combat with a hostile power ...without even formally recognizing a state of war." (MacArthur quoted in West and Phillip, 2001, 195)The Korean War was the civil and military struggle that was fought on the Korean Peninsula between 1950 and 1953. It originated in the division of Korea after the Second World War. The rivalry between the two Koreas drew third party countries into political and ideological disputes, such as the ongoing dispute between the United States of America and the USSR. There were many conflicts between the communists and capitalists during the Cold War era, commonly known as proxy wars, and the most serious incident occurred in Korea. Why did North Korea cross the 38th parallel and invade South Korea? This essay will argue that the primary reason is that; the Soviet-backed North Korean Communist government led by Kim Il Sung attacked the American-backed South Koreans with the aim of unifying the two Koreas and expanding communism.English: Armistice Agreement, DPR KoreaThe Soviets provided military and economic aid to North Korea in the hope of gaining a valuable buffer zone in Asia.In the months following the conclusion of the Second World War, the then unified Korea, split into two - North and South, both taking different steps in ideology which ultimately led to the Korean War. The Soviet Union controlled the North, while the US controlled the South. The North was transformed into a communist state under the control of the Soviet Union and the dictator Kim Il Sung, who was a dedicated communist who had fought for the Red Army during WW2 (Dictatorofthemonth, 2008). This made a recipe for disaster, considering that South Korea was under command by the Americans who were predominantly capitalist and in the focal point of...
Saturday, October 19, 2019
Project Portfolio Management Essay Example | Topics and Well Written Essays - 250 words
Project Portfolio Management - Essay Example According to Todd (2003) having a strong program for portfolio management can significantly lower risks and maximize the value of projects. It can strengthen communications between projects teams business leadership, encourage teamwork & responsibility in management of projects, permit efficient scheduling of project resources and eliminate project redundancy. The ultimate result is profitability and maximum value out of projects. It is crucial to follow best practices and key steps of project management. Firstly it is important to have an inventory of projects so as to have all the projects the organization is running in a single database. Second is to identify those projects matching strategic business objectives and then categorize the projects based on their scores. It is also crucial to proactively manage the projects and identify potential hurdles in good time. The article is very useful especially to persons involved in project management. While the author appreciates there one specific approach to portfolio project management, he points pins out aligning projects with strategy and embracing best practices as key success factors. The article also maps important activities that must be implemented while managing projects and therefore the information is very useful to project management teams but also business leaders and students of
Friday, October 18, 2019
CASE STUDY Example | Topics and Well Written Essays - 500 words - 4
Case Study Example nquiry is present in the story, because Harris highlighted in the general bulletin sent to all employees that Akin will be helping them recognize their strengths and what they are doing right, so that plant work can be done more effectively and efficiently. He emphasized that ââ¬Å"his presence is not due to any particular problemâ⬠but a product of the managements desire to ââ¬Å"continuously improveâ⬠(211). The management wanted to highlight the identification of strengths of the company in a positive manner, which is aligned with appreciative inquiry. In addition, when Akin conducted his research, he did not ask about problems, but inquired in such a way that will help him gain a strengths-based understanding of the model of work at DuPont. There was no ââ¬Å"judgmentâ⬠or ââ¬Å"biasâ⬠in his research, and instead, there was more emphasis on the strengths of the people. c) Sense-making- Sense-making is applied in the story, because Akin understood the culture and work system of DuPont by researching with the people. This means that together, the researcher and the workers made sense of their experiences and generated the local organization theory that people used to do their work. In addition, the research paved way in identifying and understanding the stock-car racing metaphor that the people used to explain their idea of teamwork and how they worked together. 2) In your opinion, how compatible are these three approaches? Why? What evidence is there in the DuPont story for your answer? As a change manager, to what extent could you utilize insights from each approach? For me, these approaches are compatible, because OD can use sense-making and appreciative inquiry as means of understanding the needs for change, preparing people for change, and collaborating with them to achieve organizational changes. Sense-making, for instance, helped reinforce appreciative inquiry by focusing on the meaning of their work. The evidence is that since these approaches are applied,
The Godfather Movie Research Paper Example | Topics and Well Written Essays - 750 words
The Godfather Movie - Research Paper Example The plot of the story portrays an Italian American empire that is beginning to fall based on tragic situations in criminal exploits. The opening scene of a wedding pose an appeal to the viewers as family induces a feeling of belonging such that those who lack belief in it are draw in to the depths of such remarkable occasions. That in the making is one significant way to draw the attention of the viewers. This depicts the Corleone family business affairs bringing the viewers to the act, to its world and into the narrative. The epic is actually ruthless in implications as it unfolds and various styles have been used. Suspense is created effectively, and the actors seek to turn off the viewers and pull them in at the same time. Skill and craft is executed bravely with the length and the pacing of the movie aiming to show how themes of betrayal, greed and loyalty shine in life in ways that are both profound and surprising (Puzo 208). It offers a brutal depiction of events and lifestyle such as one of pirates. The story begins plotwise on an attempt to assassinate Don Vito by a rival from a different family due to his refusal to join an illegal business in narcotics trade. With his absence and temporary unavailability as he seeks medical attention, it becomes the role of his sons to run the entire empire. These include a hot tempered Sonny, mildly meek Fredo, an adopted son of Irish ancestry Tom Hagen and a fiercely independent Michael who happens to be the only fortunate son to obtain a college education (Zapala-Kraj 47). Michael is initially uninterested in the family business and lacks the desire to take part in the future take over. However, with continuous deceit and betrayal, it is Michael who comes through as a successor to his... This research paper focuses on the movie The Godfather, that is one of the many action series that provides a captivating entertainment especially for those who love to watch drama and crime. The movie was produced in 1972 and based on the novel by Mario Puzo, The Godfather. The movie provides a captivating scene and popular moving chronicles of American life that are brutal in their nature and the way they are depicted. Within the context of all popular entertainment, this movie provided a higher rating in the mode of the filming. The screen player Francis Ford Coppola brings forth a gangster melodrama that is truly sorrowful but also extremely exciting that lacks the unbelievable piety of the previous productions in the movie industry that strike fear but caution that the crime is not paying. The movie is an illustration of daily life events. Let us face it, to be rich, powerful, feared and influential is a way of life achieved by some people and we cannot deny is one that most wou ld desire and find somewhat compelling. Based on that, drama epics like The Godfather gives the viewer the chance to explore this dark possibility and emotion as well as live through the actors and traits as depicted in the film. There is much people who can borrow from a story that shows how a person can move from normal life of casting out roles to one of taking duty and responsibility towards a fulfilled life. Michael can be used as a turning point to people who lack a sense of direction, and the movies is highly recommended.
Subscribe to:
Posts (Atom)