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Playlist: 4th Grade Math Topic 07

Factors and Codes (Episode 1)

Let’s use factors to encode and decode words.

Why Is Our Calendar So Weird!?

Why are there 12 months? Why don’t weeks fit into months evenly? Why don’t weeks fit into the year evenly? What’s going on with the calendar!

Math Curiosity: Waring’s Conjecture

So, can you write every odd (greater than 3) as the sum of three primes?