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.

“Polyomino Puzzlers”

Wednesday, December 10
You’ve heard of dominoes, but have you ever heard of trominoes, tetrominoes, or pentominoes?  Discover the many surprising shapes you can create simply by combining single-size squares and explore various types of symmetry using these unique objects.  Materials needed: printout to be provided, pencil, and colored pen (or marker).  Optional materials: scissors and tape.

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Play like a Mathematician: Game, SET, Math”

Thursday, December 18
Based on set theory and combinatorics, SET is a fast-paced card game where players race to identify sets of three cards that follow specific rules.  Join us to play a few rounds of SET where, in order to win, you will be challenged to recognize many fun patterns!  Materials needed: SET card game (optional).

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“Dynamic Dice”

Tuesday, December 23
What are the odds of rolling a given sum with a pair of standard dice?  Explore how to determine the probability, then challenge yourself to find a different way to number the dice to get the very same probabilities.  Come roll the dice!  Materials needed: pencil and paper

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“Rep-tiles”

Wednesday, December 31
Come discover mathematical rep-tiles, geometric shapes that can tile into repetitions of themselves.  Learn about scaling, special tessellations, and mathematical proofs, while solving fun rep-tiles puzzles.  Materials needed: pencil, paper, printouts to be provided, and scissors (to cut out shapes prior to session)

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“Magic Squares”

Thursday, January 8
Magic squares are a set of puzzles that have long fascinated many of the world’s most brilliant thinkers.  Dating back more than 4,000 years to ancient China, magic squares are those in which the sums of each column, row, and diagonal are always “magically” the same number!  Discover surprising strategies to solve these mysterious puzzles and learn how to create your very own magic square.  Materials needed: paper and pencil.

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“Hailstone Numbers”

Tuesday, January 13
Take any positive integer and follow a few simple steps…  repeat.  You will get a wild sequence that jumps up and down — just like hailstones in a storm — until it mysteriously settles at 1.  But does every number eventually land there?  That’s the puzzle behind the Collatz Conjecture, an unsolved math mystery that’s stumped even the greatest minds.  Legendary Hungarian mathematician Paul Erdős once said, “Mathematics is not ready for such problems.”  Join us to experiment, explore, and perhaps even find your own path through this number riddle!  Materials needed: paper and pencil.

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Exhibit Explorations: Pythagorean Puzzlers”

Wednesday, January 21
The Pythagorean theorem is one of the most important results in all of mathematics.  There are more than 120 geometric proofs currently known!  Explore geometric proofs in this hands-on workshop based on MoMath’s Time Tables puzzler.  Materials needed: pencil, paper, colored pens (or pencils/markers), ruler, scissors, and graph paper (printout available).

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“Cryptarithmetic”

Thursday, January 29
Arithmetic is fun, but arithmetic with letters is even better!  Using process of elimination and clever logic, we will explore fundamental properties of base-10 arithmetic in a unique and challenging way.  Join us for CRYPT4R1THM3T1C!  Materials needed: pencil and paper.

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“Fun on the Square Grid”

Tuesday, February 3
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).

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“Sensational Puzzles”

Wednesday, February 11
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.

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Play like a Mathematician: Bulgarian Solitaire

Thursday, February 19
Join us for Bulgarian Solitaire, a simple and intriguing game first Introduced by Martin Gardner in 1983.  Grab a few tokens or a deck of cards and discover the mathematical elegance behind this fun and engaging puzzle.  Materials needed: paper, pencil, 25 small items for game tokens (coins, beans, paper clips, etc.) or a deck of cards..

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“Fractal Fascinations”

Tuesday, February 24
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).

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“Luck, Magic, or Math?”

Wednesday, March 4
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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“Tangram Teasers”

Thursday, March 12
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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“Grids of Life”

Tuesday, March 17
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.

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“Math in the Corner Pocket”

Wednesday, March 25
Explore angles and the law of reflection while tracing the path of a billiard ball as it bounces off the walls of a pool table.  Use patterns to discover a simple method to predict in which pocket the ball will land and learn how to prove that your prediction is correct.  Game on!  Materials needed: pencil, ruler, and graph paper (printout available).

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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.