Two different triangles are animated. Show your class this animation and simply ask:
- What do you notice?
- What do you wonder?
After some conversations show them this one, with the side lengths being shown and ask again:
- What do you notice?
- What do you wonder?
Lastly, show them this image and ask them "How could we analyze this?"
Some possible routes:
- Prove the sides hold true for Pythagorean theorem
- What angle(s) would be in the triangle?
- How are these 2 triangles similar? How are they different?
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