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学生说明
1. 
Draw pictures to show how to solve the problem.
2. 
Label your drawings.
3. Create a label with your answer.
4. Create an equation to match your picture.
5. 
Explain how you solved the problem.
教师备注（学生不可见）
Here is a slide deck of the 3 acts. https://docs.google.com/presentation/d/1wRg9rPmYgsXtSZLNrhqiNMRhNNExoX1oPoeiu1h71Iw/edit?usp=sharing
