What Khan Academy Missed About the Polygon Interior Angles Sum Theorem

Do you think you know the Polygon Interior Angles Sum Theorem? Watch and find out. If you are a teacher, please consider implementing these ideas into your classroom. You can check the measures of the interior angles of any polygon using Desmos or GeoGebra.
Desmos Geometry debut.
----------------------------------------------------------
Check out my new book -- Learning Isn't Linear: The Essential Problem, Solution, and Project Book for Students, Teachers, and Parents available on amazon.com.
Softcover - https://www.amazon.com/Learning-Isnt-...
Softcover (color ed.) - https://www.amazon.com/Learning-Isnt-...
eBook - https://www.amazon.com/Learning-Isnt-...
(The book contains the "rolling rectangle" and the "caterpillar" Desmos programs.)
---------------------------------------------------------
"Prioritize long-term learning over short-term test-taking."
Triangulation paper - https://sites.cs.ucsb.edu/~suri/cs235...

0:00 Intro
0:38 Counting Regions
2:51 Pentagon
4:10 Heptagon
4:50 General Convex Proof
5:49 Khan Academy
7:34 Correcting Mistake
10:04 Art Gallery Problem
10:33 Bloopers
11:34 Outro
-----------------------------
#manim_community
-----------------------------
#education
#mathematics
#calculus
#desmos
#geometry
#desmos
#books
#teacher