Broken Calculator: Multiplication Cross Product

Contig

Roll three dice and combine them using any mathematical operation. But be strategic to maximize your points!

Spring Math Worksheets: Multiplication and Division

Sets of multiplication and division practice problems. But the unknown isn’t where you expect it to be!

How Many Will There Be? Crosses

Give kids a taste of a sequence, let them build an understanding, and then see how far their predictions can take them.

How Many Ways: Fraction Subtraction Equals 1/2

How many different ways can you make this math statement true using only the digits one through nine?

How Many Will There Be? Pyramids

Give kids a taste of a sequence, let them build an understanding, and then see how far their predictions can take them.

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.

How Many Will There Be? Desks

Give kids a taste of a sequence, let them build an understanding, and then see how far their predictions can take them.

How Many Will There Be? Flowers

These flowers sure are getting bigger faster! How large will they be in step 10? What about step 50?

Fractions: Decompose and Recompose

What if we took a fraction apart, then took those pieces apart, then recombined them, and then recombined those, arriving back to the original fraction?

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!

How Many Ways: Times Equals Minus

How many different ways can you make this math statement true using only the digits one through nine?

Exponents – How Low Can They Go?

Using exponent patterns, can students predict what the 0th power will be?

Calculators, Patterns, and Multiplying By Decimals

Before teaching students the procedure for multiplying with decimals, how much can they intuitively glean from a structured play session with calculators?

Math Curiosity: Four Squares

Every positive integer can be written as the sum of (at most) four perfect squares!

Doubling Dollars

Say you have a dollar. Say you can double that dollar each day: $1, $2, $4, and so on. How long will it take to reach… one million dollars? Not as long as you might think!

Math Curiosity: Twin Primes

What do you call two prime numbers who are very close together?

The Game of 100

Who can get to 100 first in this simple, but delightful, math game?