Instructional Activity# Meet the Pythagorean Theorem

Lesson 6. Unit 8. Grade 8 Open Up Resources

Open Up Resources10 min(s)

This Instructional Activity is a part of the Lesson 6, Unit 8, Grade 8. In this task, students can use squares or count grid units to find side lengths and check whether the Pythagorean identity a^2+b^2 = c^2 holds or not. If students don't make the connection that it works for the two right triangles but not the other one, this should be brought to their attention. In the synthesis of this activity or the lesson synthesis, the teacher formally states the Pythagorean Theorem and lets students know they will prove it in the next lesson.