#GMW2025 #explodingdots
We're on our way to lighting up the world yet again!
Try Exploding Dots with your students for GMW2025. Become part of a global phenomenon. Let folk know on social media.
7.8 million teachers and students have played with Exploding Dots.
Let's see how the numbers grow again this year!
Use the tags #GMW2025 and #explodingdots.
Middle-School Level Materials and High-School Materials
The story of Exploding Dots began with James being challenged to teach some advanced high-school math that was, in reality, just the human story of place-value in disguise. So, he taught that story, making the advanced math joyful, natural, and a non-issue.
Click the PLAY button above to see the math.
How do you say the number 175487 in your language?
We're asked people to teach us how they say the big number 175 487 in their local language.
You can still write to us or video us saying the number. Be sure to tell us what language are you speaking, and, please translate word-for-word into English what you are saying. Most people don't think about the individual words themselves and they are often surprising.
Watch the video for details and to see how surprising it can be!
VIDEO
Professional Development Course for credit!
GMP has teamed up with ASU's Mary Lou Fulton Teacher College for Innovation to translate the nine principles we used to create Exploding Dots to help you transform you classroom curriculum too!
Click here to reach the course.
THE HISTORY OF EXPLODING DOTS
Have you wondered about the story behind the Global Math Project and Exploding Dots?
This short presentation tells it all.
VIDEOTALKS, LESSONS, and MIND-BENDY PUZZLES
The Global Math Project, with their friends at CYFEMAT , have been giving live lessons on Exploding Dots in English, Spanish and Portuguese.
And GMP Ambassadors regularly share their exuberant joy for math too!
See recordings of past presentations below.
October 10
PATTERNS with James Tanton
What to do if you believe in them. What to do if you don't!
Tom Rocks Maths!
Tom Crawford uses mathematics to analyse the perfect penalty kick!
Lesson 1: Exploding Dots (Español)
Starting the Exploding Dots experience with Héctor Rosario.
An Adventure into Number Searches
Michaela Epstein provides a powerful student experience for exploring creative mathematics.
October 11
Lesson 2: Exploding Dots (Español)
Continuing the story with Rubén Martinez.
Exploding Dots with James
Where to find them!
Lesson 2: Exploding Dots (Español)
Continuing the story with Romina Busain.
October 12
Lesson 3: Exploding Dots (Portugués)
The fun continues on with Paulo Rodrigues!
Lesson 3: Exploding Dots (Español)
The fun continues on with Marcos Chacón!
Exploding Dots with James: Lesson 2
He remembered to hit record this time!
Fun with Pythagorean Triples
Master math expositor David Poras shares classroom magic on generating Pythagorean Triples.
The Dragon Curve
The tops math educator and math author Alicia Burdess tells the story of the Dragon Curve.
October 13
Lesson 4: Exploding Dots (Español)
Join Abdón Pari for the next part of the fabulous story!
Sharing the Joy of Number Talks
Join math educator extraordinaire Alex Box in the lovely exploration of Number Talks.
Exploding Dots with James: Lesson 3
Dots and Tods!
Lesson 4: Exploding Dots (Español)
Join Bertha Ivonne Sánchez for the next part of the fabulous story!
The Magic of a certain 4-by-4 Grid
Experience some mathematical magic with Dr. Raj Shah!
Solving Problems in Real Time
It's the fabulous frog-jumping puzzle with Alicia Burdess.
October 14
Exploding Dots with James: Lesson 4
Mind-Blowing Division!
Lesson 5: Exploding Dots (Español)
Playing with Division with Ramón Martinez.
What is Math Joy?
Math educator and author Erik van Haren shares beautiful and wise thoughts on this topic!
Lesson 5: Exploding Dots (Portugués)
Apologies ... Technical difficulties did not allow us to upload this video.
October 15
Lesson 6: Exploding Dots (Español)
Julieta Parravicini expertly continues the math fun!
The Classic Two-Coins Puzzle
Dr. Raj Shah--and the audience!--lead a discussion on a classic problem.
Exploding Dots Lesson 5 with James
James finishes his whirl-wind tour of Exploding dots with base x and base one-and-a-half!
Lesson 6: Exploding Dots (Español)
Greisy Winicki-Landman helps us discover decimals!
October 16
Lesson 7: Exploding Dots (Español)
From Base 10 to Base x with Leobardo Mendoza.
Lesson 7: Exploding Dots (Español)
Claudia Lara and Sofia Gutiérrez take us from base 10 to base x in this story!
October 17
Math Through Games
Astounding Fibonacci surprises with Kiran Bacche.
Lesson 8: Exploding Dots (Español)
Héctor Rosario takes us on a journey into irrational numbers.
BONUS: Bringing Magical Circles to Life!
We're featuring a BONUS VIDEO with GMP math friend Chris Smith who appears in this fabulous animated math video!