MoMath Online: Student Sessions

Monday, July 20 to Friday, July 24

Whether your child is already passionate about mathematics or just starting to explore its wonders, MoMath Online: Student Sessions will expose your child to cool areas of mathematics not covered in school and stoke the flames for a lifelong appreciation of mathematics.

Each session is 45 minutes.

Pricing:  Most classes are $25 per session; some classes, marked “free*,” are offered at no cost to everyone.  All classes are free for MoMath members this summer (through Labor Day).  Additionally, free spots in every class have been set aside for families with financial need; simply register early for these limited spots.

All times listed below are in Eastern Daylight Time (New York).
Please click on a time to register.

Grades Online Session Mon 7/20 Tue 7/21 Wed 7/22 Thu 7/23 Fri 7/24
pre-K – 2 Shape Shifters 3:30 pm 4:45 pm (free*)
K – 3 Discovering Polyominoes 4:45 pm 3:30 pm (free*)
1 – 4 Ghostly Graphs 2:15 pm 2:15 pm (free*)
2 – 5 Points and Shapes 12:00 pm (free*) 12:00 pm
3 – 6 Möbius Madness 3:30 pm (free*) 4:45 pm 4:45 pm
3 – 6 Secrets of Cryptography 4:45 pm (free*) 3:30 pm
4 – 8 Poltergeist Paths 2:15 pm 1:00 pm (free*)
5 – 8 Crazy Dice 2:15 pm 3:30 pm (free*)
7 – 12 Evening the Odds 2:15 pm (free*)  
9 – 12 Puzzle Sensations 12:00 pm (free*) 1:00 pm
*Free sessions are free for everyone.
Free spots in every class have been set aside for families facing significant financial hardship; sign up early!  Please prioritize these limited spots for families in need.
All classes are free for MoMath members through Labor Day.  Not a member but would like to join?

Daily Sessions

Sessions are available for grades pre-K through 12, as indicated above.

After you register for your 45-minute session, you will be sent a link and instructions so you may join the fun via Zoom, the free video conferencing platform.  Multiple family members may participate in a session, but please limit the link to one device and one household, as there is a limit on devices.

Session Themes


Our online education sessions offer several inspiring, mathematical themes for grades pre-K through 12.

Shape Shifters (grades pre-K through 2): Shapes are all around us, and form the basic building blocks of modern life.  Using squares, rectangles, rhombi, trapezoids, and hexagons, students will discover how shapes are different from each other and how mathematicians identify and name them.  Interactive activities and games will teach students about geometrical symmetries and how to construct polygons with many sides, including the tetracontakaihexagon!  Materials needed: a printout to be provided and scissors (to cut out shapes prior to session).

Discovering Polyominoes (grades K through 3): You’ve heard of dominoes, but have you ever heard of trominoes, tetrominoes, and pentonimoes?  Discover the many surprising shapes you can create simply by combining single-size squares.  Explore various types of symmetry using these unique objects.  Warning: Solving polyomino puzzles may provide hours of fun!  Materials needed: a printout to be provided, pencil, marker, and scissors.  Optional materials: tape.

Ghostly Graphs (grades 1 through 4): Learn the basics of graph theory by counting the ways a small ghost can pass through the walls of a given house.  Discover which is more important: the number of walls, the number of rooms, or the overall layout.  Explore these questions, as well as starting and ending positions, different types of paths, and other intriguing questions.  Have fun in a unique and accessible introduction to this sophisticated branch of mathematics!  Materials needed: pencil, paper, and markers (4 colors).

Points and Shapes (grades 2 through 5): Is there an easy way to find the area of geometric shapes?  The answer lies in the geoboard, a square grid used to explore polygons.  Starting with rectangles and triangles and quickly advancing to polygons of any size and shape, explore this fun and unconventional way to calculate area.  Come discover the curious relationship between interiors and boundaries in shapes you design yourself!  Materials needed: pencil and graph paper.

Möbius Madness (grades 3 through 6): Students construct fascinating topological objects such as Möbius bands, discovering their fundamental patterns and structures.  Hands-on activities lead students to discover the surprising properties hidden around every twist and turn!  Materials needed: 4 strips of paper (2 inch x 11 inch), scissors, tape, and markers (2 colors).

Secrets of Cryptography (grades 3 through 6): Explore cryptography, secret codes, and ciphers!  Students are introduced to the substitution cipher, which hides messages by replacing letters or groups of letters with other letters or groups of letters.  Using patterns and perseverance, learn how to create hidden messages — and how to break secret codes!  Materials needed: paper, pencil, printout to be provided, and scissors.  Optional materials: brad, paper fastener, or pin.

Poltergeist Paths (grades 4 through 8): Dig into graph theory by exploring the connection between vertices and edges and the walls of a haunted house.  Discover a method to find out if a ghost can haunt a castle or if a figure can be drawn without lifting the pen.  Explore how these two problems are related and what they have to do with bridges in 18th century Prussia!  Have fun in a unique and accessible introduction to this sophisticated branch of mathematics.  Materials needed: pencil, paper, and markers (4 colors).

Crazy Dice (grades 5 through 8): Once students find the probability of rolling a given sum with a pair of standard dice, they are challenged with finding a different way to number their dice to get the same probabilities. Crazy!  Materials needed: sheet of paper and pencil.

Evening the Odds (grades 7 through 12): The probability of rolling different sums with a standard pair of dice depends upon the sum in question.  This activity guides students to find ways to renumber their dice so every sum appears with the same probability.  But then, what sums are possible to fit into this scheme?  How many different sums can be rolled with equal likelihood?  The answers to these questions and more are found in this activity.  Materials needed: sheet of paper and pencil.

Puzzle Sensations (grades 9 through 12): Explore mathematical puzzles that grabbed the headlines!  Learn to solve spectacular and controversial puzzles using logic, probability, and basic graph theory.  Develop puzzle-solving strategies while diving into these news-making mathematical conundrums.  Materials needed: pencil and paper.

Registration Fees

Registration fees are pay-if-you-can per session.  Please note that sessions by the same name are repeated sessions, not continuations of earlier sessions.

Session Policies

Strictly no refunds, no credits, and no transfers will be permitted.  Spots are limited and available on a first-come, first-served basis.

Be sure to read all MoMath Online: Student Sessions Policies prior to registration.