Math E320 Spring 2021
Teaching Math with a Historical Perspective
Unit 03: Geometry
Unit 01 
Unit 02 
Unit 03 
Unit 04 
Unit 05 
Unit 06 

Unit 07 
Unit 08 
Unit 09 
Unit 10 
Unit 11 
Unit 12 
Unit 13 
In unit 3, we cover geometry. We in particular look at a few beautiful theorems. Lecture 3: Geometry [PDF] . See here for the slides of Spring 2017. Here is a short video about the maybe 5 most beautiful theorems about triangles: 
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