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# Ice Cream in a Bag - What Should Kids Learn?

With regard to the attached lesson for 5th grade Physical Science properties of matter, some questions:

1) What specifically, should students learn in this lesson?

2) What should students be able to do after the lesson?

3) How could a teacher draw on students' skills, knowledge, prior experience, experiential backgrounds, and interests to help students reach learning standards/objectives?

4) How will/can the teacher determine whether students have these?

5) How should the teacher go about providing scaffolding or other forms of support to address a variety of student learning needs?

6) What educational theories underpin this lesson?

7) What learning processes will the students use in this lesson? (E.g. critical thinking, compare/contrast, summarizing, elaborating, creative thinking)

8) What are some ways the teacher could have learners summarize or reflect on what they learned (for example, share work, share a strategy, share a process, discuss what they learned, and raise a new question)?

#### Solution Preview

This is always a fun activity. I have done it with 9th graders using two different tin cans to make ice cream. They don't often pay much attention to the science behind why the ice melts and why they get ice cream, but they sure love rolling the cans across the floor and eating the product. I will try to answer (or help to answer and guide) each question below it:

With regard to the attached lesson for 5th grade Physical Science properties of matter, some questions:
1) What specifically, should students learn in this lesson?
I think the students should learn about phase changes (ice to water, milk to cream) and how salt affects the temperature of ice. Also, why is salt used to melt ice? Something else I think they should know is how salt impacts the phase changes that happen with ice/water (lowers melting/freezing point, etc.).

2) What should students be able to do after the lesson?
After this lesson, I think the students should be able to describe how salt impacts the phase changes of ice AND why it was used to make the ice cream. What happened to the ice/milk when the salt was added?

3) How could a teacher draw on students' skills, knowledge, prior experience, experiential backgrounds, and interests to help ...

#### Solution Summary

This document details the lesson and objectives of a 5th grade science lesson called Ice Cream in a Bag. Students investigate phase changes and how salt impacts the melting point of ice. The solution outlines various things that should happen during the lesson in terms of learning, educational theory, and lesson objectives.

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