Purpose
[stextbox id = “info”] To assess growth in students’ understanding of the particle model of matter and how the model explains how gas condenses into a liquid form.[/stextbox]
Description
[stextbox id = “info”] Revisit the super strong glasses scenario from Student Experience 2. Have students again draw what they would see in and around a glass of water before and after ice is added using this task sheet. [Task instructions for pilot teachers.] [/stextbox]Questions to Ask Students
[stextbox id = “info”]- Describe your drawings. What does each part represent?
- How is your new drawing different from your first one? What have you learned that affected your new drawing?
- How does your drawing explain why there was liquid on the outside of the glass of ice water?
- How does your drawing compare to the computer simulation we watched?
Student Thinking
[stextbox id = “info”] Students’ drawings should show evidence of particle thinking by including water particles. If they do not, revisiting the simulation might help.[/stextbox]
Implementation Tips
[stextbox id = “info”] Challenge students to add more detail than they included in their first drawing, even those students who included particles the first time.[/stextbox]