Senior Sessions

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

(online)

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.  Online registration closes 15 minutes before each session begins.

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

“Grids of Life”

Wednesday, March 19
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 colored pencils or pens (two colors) and printouts to be provided.

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“Skipping Towards Infinity”

Thursday, March 27
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).

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Play like a Mathematician: Hex

Tuesday, April 1

An engaging, abstract strategy game, Hex was invented by mathematician and poet Piet Hein in 1942, rediscovered in 1948 by the mathematician John Nash, and popularized by Martin Gardner in 1957.  The game is often played on Hex boards, but it can also be played on a floor that has hexagonal tiles!  Join us for an online version and discover a winning strategy for this fun and challenging game.  Materials needed: familiarity with the “Annotate” feature in Zoom is recommended.  Printouts of Hex boards (during the session)

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“Tangram Teasers”

Wednesday, April 9
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.

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“Topological Tic-Tac-Toe”

Thursday, April 17
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.

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“Luck, Magic, or Math?”

Tuesday, April 22
At first glance, the occurrence of an “unlikely” event might seem like luck… or magic.  However, when this event occurs over and over, we have to look more closely.  With a bit of math, we will see that some events, which might seem unlikely at first, have a higher probability than intuition would suggest.  Learn how a clever magician can “read the minds” of an unsuspecting audience using a little knowledge of probability!  Materials needed: pencil, paper, colored pens or markers (3 different colors), deck of playing cards, a single die, and printout of poems (to be provided).

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Math in Art III: Friezes

Wednesday, April 30
Continuing in our Math in Art series is an introduction to mathematical symmetry and the seven patterns of friezes.  Known for their decorative purposes and often enriched with carvings, these architectural elements have been known and used since antiquity.  Materials needed: pencil, paper, colored pencils or markers (optional), and printouts to be provided.

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