Reflection: Organizational Systems Properties of Isosceles Triangles - Section 1: Do Now


This was the first time this year I used the 6-tab organizer so I had to take a little more time to explain how to create the foldable. While the students take notes, I demonstrate how the notes should be organized. To make it easier for my students to follow, I have them use the same colored papers as I do and place the papers in the same order. Some of my students wanted to use different colors or place their papers in a different order from me. I explained why I wanted them to use the same colors and order as me. However, some students folded their papers differently, unintentionally. I had to go over to these students individually in order to help them follow.

  Properties of Isosceles Triangles Reflection
  Organizational Systems: Properties of Isosceles Triangles Reflection
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Properties of Isosceles Triangles

Unit 7: Proofs about Triangles
Lesson 10 of 11

Objective: SWBAT write two-column proofs involving the properties of isosceles triangles.

Big Idea: Students will create a graphic organizer with the properties of isosceles triangles in order to write proofs.

  Print Lesson
Math, Geometry, Isosceles triangle, formal proof, Triangle Proofs
  45 minutes
properties of isosceles triangles image
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