Science Task Prescreen

Task Title: Crystal Lattices: Inferring Forces from Bulk Properties Grade: High School Date: 2024-05-20 SEP: Planning and Carrying Out Investigations DCI: PS1.A: Structure and Properties of Matter CCC: Patterns Task Purpose: Determining whether students can plan an investigation using bulk properties to infer the strength of intermolecular/interionic electrical forces.

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

Summary

Summarize your evidence and reasoning: The task starts with the phenomenon of vastly different melting points for common substances. Students use the flythrough simulation to visualize atomic-level structures and forces. They then apply this understanding to plan an investigation (SEP), inferring atomic electrical forces (DCI: PS1.A) based on macroscopic patterns in bulk properties (CCC). The task is well-integrated and avoids rote memorization.