Playlist: Math
How Many Ways: Multiply Fractions Equal 1/4
One equation. Digits one through nine. How many ways can you make it work?
How Many Will There Be? Sliced Circles
Give kids a taste of a sequence, let them build an understanding, and then see how far their predictions can take them.
Game: Number Scrabble
What if we played Tic-Tac-Toe with numbers and instead of three-in-a-row, we add up to 15? Well… then we’d have Number Scrabble!
Subtraction: 3 Digits Minus 2 Digits (Single Solution)
Typical practice problems don’t move students up Bloom’s Taxonomy. With this framework, you’ll see kids stop and really think about how to approach multi-digit subtraction.
Game: Snakes
In this grid-based strategy game, who will be the last to add to the snake?
How Many Will There Be? Triangles Within Triangles
A triangle splits and splits and splits again. How many will there be in step 20?
Math Curiosity: Ulam Spiral
What if we make a huge spiral of numbers and then highlight only the primes? Well, a bunch of weird patterns show up!
Math Curiosity: Four Squares
Every positive integer can be written as the sum of (at most) four perfect squares!
Sprouts
Learn how to play the abstract, paper-and-pencil game Sprouts.
Lines, Line Segments, Rays, and Infinity!
A lesson about lines, line segments, and rays that avoids dull memorization. Instead, we ponder this delightful question: Which is longer, a ray or a line? Then, kids consider what these different geometric concepts would think about each other.
Fractals: Sierpinski’s Triangle
What if this triangle pattern just kept repeating… forever!?
The Game of 100
Who can get to 100 first in this simple, but delightful, math game?