Our programs transform the world’s perception of what learning mathematics can be.

More than 95% of teachers agree that our lessons make mathematics more approachable, enjoyable, and understandable.

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We offer an ever-growing collection of curriculum-aligned mathematics lessons for you to explore with your wonderful mathematics learners.

Our favorite topic is EXPLODING DOTS. It has become a global mathematics phenomenon.

More GMP Math

Do you know your personal polynomial?

Do you want to see a mathematical formula spells your name? Do you want to see a graph of your formula?

Check out this cool app that shows you your name in math!

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See the geometry of angles in a brand new light! See a strange application to riding bicycles.

Topic: Angles in polygons and applications

Grades: All, but particular interest to middle school

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Lesson 1: Welcome!

Welcome to a story about angles.

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Lesson 2: What is an angle?

Loosely speaking, an angle is simply “an amount of turning.”

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Lesson 3: Putting Pencil-Pushing to Use

People like to say that one full turn corresponds to 360 degrees.

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Lesson 4: Martian Circle

How many degrees are in a Martian circle?

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Lesson 5: Turning Once versus Turning Twice

One full turn is fundamentally difference from two full turns.

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Lesson 6: It's all a lie!

A classic riddle.

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Lesson 7: Inspiring Truth

When can we believe the marker?

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Lesson 8: An Inescapable Area

The amazing, mind-blowing bicycle!

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Lesson 9: Where did the bicycle go?

Another famous puzzle!

Welcome to a story about fractions, probability, and the infinite, all done through the deep play of garden walks!

Topic: Probability

Grades: All

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Lesson 1: Welcome

Intro to garden paths

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Lesson 2: Flipping Coins, Rolling Dice

We’ll talk more deeply about probability theory

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Lesson 3: Infinite Garden Paths

Imagine a garden path with infinitely many forks.

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Lesson 4: A Historic Start

Probability theory can, in one sense, be pinpointed to a single moment in time.

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Lesson 5: What We Choose To Believe

An insight into chance and probability

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Lesson 6: The Two Girl Paradox

A famous puzzle!

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Does "And" Mean "Multiply"?

Creating a weighted garden path for this problem

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Lesson 8: Infinite Garden Paths - Again!

A continuation on the idea of infinite garden paths

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Lesson 9: Infinite Probability Problems

In depth analysis of infinite probability

One of the first - usually the first - non-straight-line graph one encounters in school is the graph of a quadratic equation.

Topic: Quadratic Equations

Grades: Middle School, High School

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Lesson 1: Welcome

Some U-shaped graphs.

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Lesson 2: Gravity and Galileo's Insight

Do heavier objects fall through the air faster?

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Lesson 3: Sequences

Let’s do a “deep dive” into special sequences of numbers.

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Lesson 4: Projectiles, Parabolas, and Non-Parabolas

Now back to Galileo.

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Lesson 5: Debunking Patterns

Explaining why you shouldn't trust patterns

JOYOUS MATHEMATICS FROM THE GMP COMMUNITY

Here’s a collection of videos recommended by colleagues across the globe.

Some pieces are short and make for excellent classroom starters. Some are longer for the odd ten- or fifteen- moments of class time. Some are longer still for full class activity.

Have something to share?

Kids Explain Math!

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Napier's Checkerboard and Square Roots

STH explains how to find square roots with counters.

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Goldfish & Robin and Antidots

It's subtraction in a 1 <--10 machine

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Patterns in base three!

In this second video Tanu Learns explores codes in a 1 <--3 machine

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STH explores and explains a Pile-Splitting Puzzle (Part I)

Fun for all to play and try

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STH goes deeper with the Pile-Splitting Puzzle (Part II)

Now the math is advanced - and fun!

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Goldfish & Robin explain polynomial division

It's Exploding Dots!

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Goldfish & Robin explain Negabinary!

Have you played in base negative two?

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Goldfish & Robin and Friends explain the 1 <--2 machine

It's their start to Exploding Dots!

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From high-school sophomore, RW, from Massachusetts.

A stop-animation video explaining base conversation!

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Goldfish & Robin talk about additon

They do it in many bases!

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STH explains Schelling's Model

Both decrease one's bias and increase one's anti-bias!

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Goldfish & Robin explore the 1 <--2 machine

The interplay between multiplication and division

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It's pile-splitting video number 3.

STH has opened up an entire new universe of these puzzles!

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Learn binary with Tanu Learns

Tanu Learns has her own story about how binary works!

Arithmetic

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Baron Hannsz' easy Long Multiplication in Any Base!

HIGH SCHOOL: Polynomials: Let's combine Polynomials, Exploding Dots, and the Area Model for some multiplication magic!

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A Square Root of Two cartoon from BEN ORLIN (introduced by James).

MIDDLE and HIGH SCHOOL: Irrational Numbers: The inimitable Ben Orlin selected this gem of a cartoon to share.

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Dots & Tods from GMP; Piles & Holes from MINDSETS

MIDDLE SCHOOL: Negative Numbers: Go from this teaser to the full experience: www.mindsets.com/global-math-project

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How High can you Count on Your Fingers?

ALL AGES: Number Sense: The answer to the questions might surprise you!

Equations and Algebra

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Completing the Square

HIGH SCHOOL: Quadratics: Eddie Woo, winner of Australia’s Local Hero Award, tells us about Completing the Square.

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Factoring Simple Trinomials using Algebra Tiles

MIDDLE and HIGH SCHOOL: Factoring: A visual approach to Factoring Trinomials.

Geometry

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Alles is Wiskunde!

ALL AGES: Spatial Reasoning: Playing with modular origami.

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Infinite Cake Anyone?

MIDDLE and HIGH SCHOOL: Do we understand "area"? How is it that I seem to be generating infinite amounts of cake?

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Mandelbulbs

MIDDLE and HIGHSCHOOL: Tom Rocks Maths goes on the hunt for a 3D Fractal!

Probability and Expected Values

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The Surprising Math of Twinkle Twinkle Little Star

ALL AGES: Counting and/or Probability: A curious word-counting phenomenon

Math Salute

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The International Math Salute

ALL AGES: Problem Solving: James Tanton teaches James Grime the salute

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The Salute in Tanzania

ALL AGES: Problem Solving: Experience exuberant joy!

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The Salute Explained

ALL AGES: Problem Solving: James gives away the details

Riddles

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The Cuddle Duddly Fuddly Wuddly Riddle

MIDDLE and HIGH SCHOOL: Puzzle: Stop the video before the puzzle is solved

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The Giant Cat Army Riddle

MIDDLE and HIGH SCHOOL: Puzzle: Stop the video before the puzzle is solved

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The Unstoppable Blob Riddle

MIDDLE and HIGH SCHOOL: Puzzle: Stop the video before the puzzle is solved

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The Wizard Standoff Riddle

MIDDLE and HIGH SCHOOL: Puzzle: Stop the video before the puzzle is solved

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The Time Travel Riddle

MIDDLE and HIGH SCHOOL: Puzzle: Stop the video before the puzzle is solved

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The Rogue AI Riddle

MIDDLE and HIGH SCHOOL: Puzzle: Stop the video before the puzzle is solved

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The Penniless Pilgrim Riddle

MIDDLE and HIGH SCHOOL: Puzzle: Stop the video before the puzzle is solved

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The Vampire Hunter Riddle

MIDDLE and HIGH SCHOOL: Puzzle: Stop the video before the puzzle is solved

Miscellaneous

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Using Video Games to Improve Math Scores

EDUCATORS: GMP Co-Founder Dr Raj Shah gives some profound insights on math teaching in his latest TedEx piece.