# Developing Two-Column Proof Skills

Unit 3: Developing Logic and Proof
Lesson 4 of 9

## Big Idea: Can we do better than all the king's horses and all the king's men?...in this lesson, students will pick up the broken pieces of classic proofs and restore them to their original condition.

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Standards:
Subject(s):
Math, Proofs, two, Triangle Sum Theorem, Vertical Angles Theorem
105 minutes

### Anthony Carruthers

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