Algebraic Expressions Lesson 2 Episode 3 (Teachers)


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Haleemah and ET generalize their method and write an algebraic equation that shows the relationship between a border with any number of tiles on one side and the total number of tiles in the border.   

Episode Supports

Students’ Conceptual Challenges


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Focus Questions

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

1. [Pause video at x:xxx]. text

Supporting Dialogue

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

1. Example