Mathigon per a professors
Free lesson plans, videos and resources

Mathigon contains courses, activities and resources for the entire mathematics curriculum, all of which are completely free to use. We've made our content as flexible and accessible as possible – no matter how you like to teach, or which technology you and your students have access to.

Interactive Courses

Our highly interactive courses are aligned to national standards like the US Common Core. Students can explore them as a homework assignment, in a “flipped classroom”, or when learning remotely.

Virtual Manipulatives

Polypad is a library of virtual manipulatives: from polygons and fraction bars, to algebra tiles and random dice. Teachers and students can share links to their saved canvases. Explore…

Teacher Dashboard

On our teacher dashboard, you can track your students’ progress in real time and see all their saved Polypad canvases. You can also import student rosters directly from Google Classroom. Learn more…

Games, Activities and Resources

Here you can discover games like Factris, Origami folding instructions, multiplication flash cards, a customisable treasure hunt, a timeline, puzzle calendars, and so much more. Explore…

Lesson Plans and Videos

Keep scrolling for many different lesson plans and videos with tutorials and ideas how you can integrate our resources into your classroom.

Widget Library – Coming Soon

We are working on a library of stand-alone versions of all the interactive simulations and widgets from our courses, which you can use on smartboards or embed in other platforms.

Video Tutorials

Creating Classes and Linking Students

Mathigon Tutorial

Learn how to add classes and students to your Mathigon Teacher Dashboard

Sharing Polypads with a Class

Polypad Tutorial

Learn how to share Polypads with students and then view their work

Sharing/Assigning to Google Classroom

Polypad Tutorial

Learn how to set Polypad templates as assignments in Google Classroom

Compound Probabilities

Polypad Lesson Idea – US Grades 6–8

Discover how to use the dice and coin tools on Polypad to teach about compound probabilities.

Multiplying Probabilities

Polypad Lesson Idea – US Grades 6–8

Discover how to use the dice tools on Polypad to teach about multiplying probabilities.

Three ways to find the factors of 180

US Grades 6–8

Explore using number tiles, prime factor circles, and other manipulatives to find factors or large numbers.

Integer Addition with Algebra Tiles

US Grades 4-6

Polypad’s algebra tiles can be used to teach students how to add signed numbers.

Multiplication by Heart Tutorial

US Grades 2–6

Learn how to use multiplication by heart with students, including creating an account, importing students, and viewing their data.

Polypad Lesson Plans

Pentomino Perimeters

US Grades 4–8

Students explore the perimeter of shapes made from pentominoes. They learn to work systematically and construct reasoned arguments.

Shapes Round a Vertex

US Grades 6–8

Students explore the internal angles of regular polygons, and decide whether polygons can be joined together without any gaps.

How Many Rectangles?

US Grades 5–8

Students discover topics like factors, multiples, and prime numbers using a concrete, visual representation.

Tetromino Reptiles

US Grades 5–8

Students use tetrominoes as a context for exploring enlargements (dilations) and scale factors. Which “rep-tiles” can your students create?

Making Money

US Grades 3–6

Number bars can help students visualise different ways of making a specific amounts of money using 1p/1c and 2p/2c coins.

Completing Squares

US Grades 7–9

Students use algebra tiles in Polypad to to move between the forms x² + bx + c and (x ± m)² + c for a quadratic expression.

Remainder Riddles

US Grades 5–7

Students use number tiles in Polypad to develop a better understanding of remainders when dividing.

Fraction Inequalities

US Grades 4–6

Students use fraction bars in Polypad to compare fractions with different denominators.

Making Rectangles

US Grades 7–9

Students use algebra tiles in Polypad Students to move between the forms (x ± p)(x ± p) and x² + bx + c for a quadratic expression.

Tangram Coordinates

US Grades 4–8

Students will use Tangrams to deduce properties of shapes drawn on a coordinate grid.