big idea 1 : the chemical elements are fundamental building materials of matter, and all matter can...
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AP Chemistry Exam Design
What’s The Big IDEA????Big Idea 1: The chemical elements are fundamental building materials of matter, and all matter can be understood in terms of arrangements of atoms. These atoms retain their identity in chemical reactions.
Big Idea 2: Chemical and physical properties of materials can be explained by the structure and the arrangement of atoms, ions, or molecules and the forces between them.
Big Idea 3: Changes in matter involve the rearrangement and/or reorganization of atoms and/or the transfer of electrons.
Big Idea 4: Rates of chemical reactions are determined by details of the molecular collisions.
Big Idea 5: The laws of thermodynamics describe the essential role of energy and explain and predict the direction of changes in matter.
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.
Multiple Choice Section
Free Response Section
Weight 50%-60 ques. 50%-3 long, 4 short (single/multi part)
Question types
discrete itemsitem sets
All Big Ideas represented and following skills emphasized:• Experimental design and
experimental data analysis• Translations between particulate,
graphic, and symbolic representations
• Using Atomic /molecular view to explain macroscopic observations
• Following a logical/analytical pathway
Calculator use no yesFormula Chart use yes yes
Time allotted 90 minutes 90 minutes
AP Chemistry Recommended Exam Design
AP Chemistry Recommended Exam Design: Form Changes
No more standard reduction potential tableData needed will be given inside the stimulus of the problemNew streamlined formula chart (with constants)• For use during entire examNew content such as PES data, mass spec data, and reasoning with particulate level diagrams
Existing and Upcoming: AP Chemistry Exam (MCQs)
Existing•Tied to a percentage of the four content topics• 75 Multiple Choice Questions
•Five answer choices
Upcoming•Directly tied to a single or combination of the learning objectives within the curriculum framework•60 Multiple Choice Questions•Discrete and sets of assessment items•Four answer choices
What’s Out: Content Wise
What’s Out: Content Wise
What’s Out: Content Wise
What’s Out: Content Wise
What’s Out: Question Type
What’s Out: Content & Question Type
Correct statements about alpha particles include which of the following?I. They have a mass number of 4 and a charge of +2.II. They are more penetrating than beta particles.III. They are helium nuclei.(A) I only (B) III only (C)I and II(D) I and III (E) II and III
E X A M P L EWhat’s In: Particulate View
E X A M P L EWhat’s In: Particulate View
E X A M P L EWhat’s In: Particulate View
E X A M P L EWhat’s In: Particulate View
E X A M P L EWhat’s In:
E X A M P L EWhat’s In: Assessing Deeply Using Question Sets
E X A M P L EWhat’s In: Providing Needed Data in the Stimulus
Existing and Upcoming: AP Chemistry Exam (FRQs)
Existing6 FRQsQuantitative: 3 multipart questions (1 of which is always equilibrium)Non-quantitative: 2 multipart questionsWriting balanced equations: 1 multi-part question on writing balanced equations for three different sets of reactants*Lab: The lab question could be quantitative or not.
Upcoming7 FRQs (3 multi-part, 4 single/multi-part)All Big Ideas representedDirectly tied to the content and science practices in the learning objectives and focusing on:•Engaging in experimental design •Analysis of authentic lab data/observations to identify patterns or explain phenomena•Creating or analyzing atomic/molecular views to explain observations •Translation between representations •Quantitative: Following a logical/analytical pathway to solve a problem
Free Response Question (FRQ)-What’s Out: Type and Content
FRQ #1 will not necessarily be an equilibrium question, as it has always been in the old style of exam. •However, equilibrium is still of utmost importance!
There will not be a predicting reactions question like the standard FRQ #4. •However, reaction types and patterns for prediction are still being integrated into exam questions!
Free Response Questions: Lab Analysis
You can see how reaction types are now embedded in the FRQs instead of being assessed in question 4 of the legacy exam.
Free Response Questions: Experimental Design
You can see how students are being directly assessed on lab design.
Lab Learning Objectives
Free Response Questions: Experimental Design
Free Response Questions: Mathematical Routines
Quantitative skills are still an integral part of the assessment.
Free Response Questions: Mathematical Routines
Free Response Questions: Representations
Student representations of the particulate nature of matter will be assessed.
Questions? Comments?