Senior Sessions

Once a week
2:00 pm to 2:45 pm ET


Senior citizens, exercise your brain in 45-minute math sessions!  Join MoMath’s experienced presenters for intriguing classes on a variety of stimulating topics, including topology, puzzles, and cryptography.  Enjoy the discovery and challenges in these engaging, interactive activities with a collegial cohort of mature minds.  For senior citizens / mature adults.  Online registration closes 15 minutes before each session begins.

Please note that sessions of the same name are repeated sessions.

“Fun on the Square Grid”

Thursday, April 4

Join us for fun on the grid!  Become a detective of geometry, searching for squares that are hiding in plain sight.  Discover surprising properties of random shapes that you create by connecting dots on a square grid.  Materials needed: paper, pencil, graph paper (printout available).


“Sensational Puzzles”

Tuesday, April 9
Explore mathematical puzzles that grabbed the headlines!  Learn to solve spectacular and controversial puzzles using logic, probability, and basic graph theory; then develop puzzle-solving strategies while diving into these news-making mathematical conundrums.  Materials needed: pencil and paper.


Exhibit Explorations: Math Square

Wednesday, April 17
The interactive Math Square floor is the centerpiece of the Museum’s lower level, and among its varying programs is a Voronoi diagram, which creates colorful polygons under your feet.  Learn exciting details about this Museum exhibit and also how to make your very own Voronoi diagram.  Materials needed: pencil, paper, colored pens (or pencils/markers), and ruler (triangle ruler optional).


“Möbius Mischief”

Thursday, April 25
Participants construct fascinating topological objects such as Möbius bands, discovering their fundamental patterns and structures.  Hands-on activities lead participants to discover the surprising properties hidden in these surfaces!  Materials needed: 4 strips of paper (2 inches by 11 inches), scissors, tape, and two different colored pens (or pencils or markers).


“Fractal Fascinations”

Tuesday, April 30
Fractals are beautiful and mysterious objects with properties that defy the normal rules of geometry, often consisting of iterated, miniature versions of itself.  Learn about the most famous fractals and what makes them so unusual.  Materials needed: pencil and paper and triangle graph paper (link to print graph paper will be provided).


“Grids of Life”

Wednesday, May 8
Join us to play the Game of Life, invented by John Conway and popularized by Martin Gardner.  Widely known in the 1970s (particularly among the computing community), the Game of Life is an example of a cellular automaton (CA).  Learn the rules, follow recipes, and use CA principles to generate surprising patterns.  Explore simple cellular automata by creating your own infinite patterns!  Materials needed: colored pencils or pens (two colors) and printouts to be provided.


“Skipping Towards Infinity”

Thursday, May 16

Is it possible to add infinitely many things and end up with a single finite number?  Sometimes, but the arithmetic of infinity obeys its own strange rules.  Achilles and the Tortoise never quite mastered them!  Explore this classic paradox and other surprising results that arise when considering the mathematics of infinity.  Materials needed: pencil, paper (at least 3 sheets of 8.5 x 11 paper), and calculator (optional).


“Tangram Teasers”

Tuesday, May 21
Exercise your mind and stretch your spatial reasoning while searching for solutions to fun tangram puzzles.  Learn to create specific figures by combining seven polygons.  If you get stuck, try another way!  Discover multiple strategies to solve these classic dissection puzzles.  Materials needed: scissors and printout to be provided.


“Topological Tic-Tac-Toe”

Wednesday, May 29
The familiar game of tic-tac-toe becomes fun and challenging when played on alternative topological surfaces.  The typical 3×3 game board is enhanced by gluing pairs of opposite edges together in various ways, making for more interesting games and mind-bending playing spaces.  Participants learn to appreciate the ins and outs of these new objects as they develop strategies to master the mathematically enhanced games.  Materials needed: pencil and paper.


This program is intended for adults; children will not be permitted to attend, and event registrations are non-refundable and non-transferrable.