Algebraic Expressions Lesson 3 Episode 4 (Teachers)


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Haleemah and ET generalize new methods for finding the total amount spent by the friends on game apps. They write an equation that shows the relationship between the cost per app and the total amount spent by the friends.  

Episode Supports

Students’ Conceptual Challenges


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Focus Questions

For use in a classroom, pause the video and ask these questions:

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Supporting Dialogue

Focus students’ attention on conjecturing and providing evidence for their conjectures:

1. Example

Math Extensions

1. Question / problem 1

2. Question / problem 2