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Playlist: Third Grade Math

Idioms About Numbers 2

Five idioms related to numbers.

Idioms About Numbers 1

Five idioms related to numbers.

Polar Weather Report

The North Pole hits -40°. The South Pole hits -60°. Calculate the averages, graph the data, and deliver your polar weather report.

Parabolic Curve Art

Create mathematical art with curves that, well, aren’t curvy.

Looping Grid Art

Pick a few numbers, draw some corresponding lines on grid paper, and you’ll end up with some interesting, looping math-y art!

Math Curiosity: Magic Squares

Imagine a 3×3 square in which every row, column, and diagonal have the same sum. That’s a magic square!

Math Curiosity: The Coloring Problem

No video gets me more email from students! How few colors can you use to color in any map so that no two, neighboring regions are the same color?

Analyze and Create Misleading Graphs

Let’s make some intentionally bad graphs to learn how to spot poorly made graphs.