Science Task Prescreen
Task Title: Ideal Gas Law Derivation: From Boyle and Charles to PV=nRT
Grade: High School
Date: 2024-06-01
SEP: Analyzing and Interpreting Data
DCI: PS3.A (Definitions of Energy)
CCC: Patterns
Task Purpose: Provide a guided inquiry where students analyze pressure-volume-temperature data from gas simulations, discover the mathematical relationships (Boyle’s Law: P₁V₁=P₂V₂, Charles’ Law: V₁/T₁=V₂/T₂), synthesize them into the Ideal Gas Law (PV=nRT), and apply it to predict gas behavior under changing conditions, aligned to HS-PS3-2.
Instructions
- Before you begin: Complete the task as a student would. Then, consider any support materials provided to teachers or students, such as contextual information about the task and answer keys/rubrics.
- Prescreen: Answer the following high-level questions to identify any major red flags (🚩) in your task. If you find one or more red flags, consider the purpose of the task and the evidence gathered to determine whether the task warrants a deeper dive.
Prescreen Questionnaire
| Question | Yes | No |
|---|---|---|
| 1. Is there a phenomenon or problem driving the task? | [x] | [ ] 🚩 |
| 2. Can the majority of the task be answered without using information provided by the task scenario? | [ ] 🚩 | [x] |
| 3. Can significant portions of the task be answered successfully by using rote knowledge (e.g., definitions, prescriptive or memorized procedure)? | [ ] 🚩 | [x] |
| 4. Does the majority of the task require students to use reasoning to successfully complete the task? | [x] | [ ] 🚩 |
| 5. Does the task require students to use some understanding of disciplinary core ideas to successfully complete the task? | [x] | [ ] 🚩 |
| 6. Do students have to use at least one science and engineering practice to successfully complete the task? | [x] | [ ] 🚩 |
| 7. Are the dimensions assessed separately in the majority of the task? | [ ] 🚩 | [x] |
| 8. Is the task coherent and comprehensible from the student perspective? | [x] | [ ] 🚩 |
Recommendation
Based on your assessment needs and the task purpose recorded above, make a recommendation about this task moving forward (choose one):
- [x] Warrants further review.
- [ ] Should not be used.
Summary
Summarize your evidence and reasoning:
This task uses a compelling phenomenon (the changing feel of a balloon as it is squeezed and heated) to drive student inquiry into the mathematical relationships between pressure, volume, and temperature in gases. Students actively collect and analyze data from interactive simulations to discover Boyle’s and Charles’ Laws, then synthesize them into the Ideal Gas Law. The three dimensions are integrated: students analyze and interpret data (SEP) to identify patterns (CCC) in how energy at the particle level (DCI PS3.A) governs macroscopic gas behavior.