Master concepts by solving fascinating problems
Thousands of fun, guided exercises on everything from logical reasoning to machine learning. See courses →
Thousands of fun, guided exercises on everything from logical reasoning to machine learning. See courses →
A fractal is a neverending pattern. Fractals are infinitely complex patterns that are selfsimilar across different scales. They are created by repeating a simple process over and over in an ongoing feedback loop. Driven by recursion, fractals are images of dynamic systems – the pictures of Chaos. Geometrically, they exist in between our familiar dimensions. Fractal patterns are extremely familiar, since nature is full of fractals. For instance: trees, rivers, coastlines, mountains, clouds, seashells, hurricanes, etc. Abstract fractals – such as the Mandelbrot Set – can be generated by a computer calculating a simple equation over and over.
For a simple description of fractals, please download our “One Pager” (380Kb).
For more detailed info, please download our 20 page “Educators’ Guide” (7.5Mb).
Mathigon contains amazing content for the entire mathematics curriculum. Simply pick a chapter and tell your students to work through it – as a homework assignment, or on within a flipped classroom setting. A teacher dashboard shows detailed analytics on their progress and mastery.
Mathigon works on tablets and laptops, and every student will automatically get a highly interactive and personalised experience. Our content is aligned to the Common Core (US) and other national curricula.
Every chapter comes with a corresponding lesson plan for teachers, and we have a library of all the interactive games and components to use.
Everything in our world follows mathematical laws: from the motion of stars and galaxies to the transmission of phone signals, bus timetables,
weather prediction and online banking. Mathematics lets us describe and explain all of these examples, and can reveal profound truths about their underlying patterns.
Unfortunately the school curriculum often fails to convey the incredible power and great beauty of mathematics. In most cases, school mathematics is simply about memorising abstract concepts: a teacher (or a video, or a mobile app) explains how to solve a specific kind of problem, students have to remember it, and then us
e it to solve homework or exam questions. This has changed very little during the last century, and is one of the reasons why so many students dislike mathematics.
“It is a miracle that curiosity survives formal education.”
– Albert Einstein
In fact, the process of studying mathematics is often much more important than the actual content: it teaches problem solving, logical reasoning, generalising and abstra
ction. Mathematics should be about creativity, curiosity, surprise and imagination – not memorising and rote learning.
Mathigon is part interactive textbook and part virtual personal tutor. Using cuttingedge technology and an innovative new curriculum, we want to make learning mathematics more active, personalised and fun.
Rather than telling students how to solve new kinds of problems, we want them to be able to explore and “discover” solutions on their own. Our content is split into many small sections, and students have to actively participate at every step before the next one is revealed: by solving problems, exploring simulations, finding patterns and drawing conclusions.
We built many new types of interactive components, which go far beyond simple multiple choice questions or textboxes. Students can draw paths across bridges in Königsberg, run large probability simulations, investigate which shapes can be used to create tessellations, and much more.
As users interact with Mathigon, we can slowly build up an internal model of how well they know different related concepts in mathematics: the knowledge graph. This data can then be used to adapt and personalisethe content – we can predict where students might struggle because they haven’t mastered all the prerequisites, or switch between different explanations based on students’ preferred learning style.
A virtual personal tutor guides you stepbystep through explanations and gives tailored hints or encouragement in a conversational interface. Students can even ask their own questions.
Using Mathigon requires much more effort and concentration from students, compared to simply watching a video or listening to a teacher. That’s why it is important make the content has fun and engaging as possible.
Mathigon is filled with colourful illustrations, and every chapter has a captivating narrative. Rather than teaching mathematics as a collection of abstract facts and exercises, we use real life applications, puzzles, historic context, interdisciplinary connections, or even fictional stories to make the content come alive. This gives students a clear reason why what they learn is useful, and makes the content itself much more memorable.
All these goals are difficult to achieve in a classroom, because a single teacher simply can’t offer the individual support required by every student. Of course, we don’t want to replace schools or teachers. Mathigon should be used as a supplement: by students who are struggling and need additional help, students who want to go beyond what they learn at school, or even by teachers in a blended learning environment.
Get the Math Challenges


Math in Music: IntroductionDobleFlo talks about using math in music production and presents an algebra challenge related to one of their new singles. 
Math in Music: Take the challengeMatch the electronic beat to the instrumental sample by calculating the correct tempo in beats per minute. 
Math in Music: Try other music challengesChoose from different instrumental samples and electronic drum tracks to create a new track and figure out the correct tempo in beats per minute. 
Math in Fashion: IntroductionChloe Dao explains how she uses math as a fashion designer and sets up a math challenge involving one of her designs. 
Math in Fashion: Take the challengeModify Chloe Dao’s design from the video to meet the target retail price of $35 or less. 
Math in Fashion: Try other fashion challengesAfter solving Chloe’s challenge, use the same skills to modify three more complicated garment designs. 
Math in Videogames: IntroductionJulia Detar describes how she uses math to create videogames and presents a math challenge. 
Math in Videogames: Take the challengePlot a linear path for the spaceship to avoid crashing into the asteroid. 
Math in Videogames: Try other videogame challengesAfter saving the spaceship, try a more challenging submarine game to test your skills with coordinate graphing and linear equations. 
IntroductionChef Sue Torres challenges the teams to use algebra to recommend a price for guacamole. 
Math in Restaurants: Take the challengeChoose one of two strategies to make your prediction for avocado prices in the coming year. Then, use Sue’s rule of thumb to come up with a recommended menu price for guacamole. 
Math in Restaurants: Try other restaurant challengesAfter solving Sue’s guacamole challenge, try additional challenges involving three menu items with different main ingredients: chicken, shrimp, and beef. 
Math in Basketball: IntroductionBasketball player Elton Brand presents a challenge about the math behind free throw shots. 
Math in Basketball: Take the challengeUse the three key variables and Elton Brand’s stats to figure out the maximum height the basketball reaches when Elton shoots a free throw. 
Math in Basketball: Try other basketball challengesChoose new sets of stats and sharpen your skills with additional challenges around the math behind free throw shooting. 
Math in Special Effects: IntroductionJeremy Chernick from J&M Special Effects sets up a challenge about lighting for highspeed effects. 
Math in Special Effects: Take the challengeUse light probe readings to figure out the mathematical relationship between intensity and distance. 
Math in Special Effects: Try other special effects challengesLearn how a setting called an fstop affects the amount of light coming through a camera lens. 
The Latest website from the team behind The Literacy Shed.
We have collected some videos that will help you present a range of maths topics in a fun way.
Please share any success stories that you have had using any of these resources.
Twitter: @grahamandre
email: grahamandre07@gmail.com
Yummy Math provides teachers with an easy way to bring reallife into their math classrooms. It is our belief that when math is explored in contexts that are familiar and of interest to students, students will be more engaged to do math, reason, think critically, question and communicate. Our activities are written to correspond with the NCTM Process Standards and the CCSS Standards for Mathematical Practice. You can read what our users have said here.
We’ve kept the site updated with multiple activities per week since March 2010 at no charge to teachers. If you have used our material, please consider making a donation to help us continue bringing meaningful mathematics to you and your students.
For example, here is a lesson from Sept 2017 about Hurricanes: https://www.yummymath.com/wpcontent/uploads/hurricane2017update.pdf
https://www.cariboutests.com/index.php#upcoming …
The Caribou Mathematics Competition is a world wide online contest that is held six times throughout the school year. Each of these days, five contests are offered, one for each of the grade levels 3/4, 5/6, 7/8, 9/10 and 11/12 and each one in English, French and Persian.
The Caribou Cup is the series of all Caribou Contests in one school year. Each student’s ranking in the Caribou Cup is determined by their performance in their best 5 of 6 contests through the school year.
All of our previous contests are available for free online as previous tests.
The goals of this project are to:
Contests can be started between 7:30AM and 3:30PM local time. Students are given 60min to complete the test.
Date  Grades 

18th(Wed) & 19th(Thu) October, 2017  3/4, 5/6, 7/8, 9/10, 11/12 
15th(Wed) & 16th(Thu) November, 2017  3/4, 5/6, 7/8, 9/10, 11/12 
17th(Wed) & 18th(Thu) January, 2018  3/4, 5/6, 7/8, 9/10, 11/12 
14th(Wed) & 15th(Thu) February, 2018  3/4, 5/6, 7/8, 9/10, 11/12 
4th(Wed) & 5th(Thu) April, 2018  3/4, 5/6, 7/8, 9/10, 11/12 
2nd(Wed) & 3rd(Thu) May, 2018  3/4, 5/6, 7/8, 9/10, 11/12 
Details for participation and fees can be found here.
Cash prizes are given out to the top performing students and schools in the Caribou Cup. Additionally, contest and Caribou Cup certificates can be printed after each test is marked. More information regarding prizes and a sample certificate can be found here.
Calcrostics are a trademark in a Caribou Contest – one appears in nearly every contest.