Senior Sessions

Twice a week (weekdays)
2:00 pm to 2:45 pm ET (New York)

Seniors citizens, exercise your mental muscles 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.

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

Senior Sessions: “Dynamic Dice”
Friday, May 14, 2:00 pm to 2:45 pm ET (New York)
What is the probability of rolling a given sum with a pair of standard dice?  Explore how to determine that probability and 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.

Register for “Dynamic Dice” on May 14

Senior Sessions: “Chessboards and Dominoes”
Monday, May 17, 2:00 pm to 2:45 pm ET (New York)
What shapes can you fit together to cover a chessboard?  Dominoes?  Trominoes?  Learn about mathematical proofs while exploring patterns of odd and even numbers and experimenting with real dominoes and chessboards.  Materials needed: pencil and graph paper (printout to be provided).  Optional materials: chessboard, dominoes.

Register for “Chessboards and Dominoes” on May 17

Senior Sessions: “Vote Counts: Packing and Cracking”
Thursday, May 20, 2:00 pm to 2:45 pm ET (New York)
Get a glimpse into the mathematics of elections by becoming a “legislator” for a day.  Explore how election districts are drawn, including “packing,” “cracking,” and the meaning of wasted votes, in order to analyze the fairness of representation in an election.  Materials needed: paper, pencil, colored pens (or markers), and printout to be provided.

Register for “Vote Counts: Packing and Cracking” on May 20

Senior Sessions: “Making Math Solid: Hexahedron”
Tuesday, May 25, 2:00 pm to 2:45 pm ET (New York)
Explore geometry and discover the beautiful structure of polyhedra!  Using modular origami techniques that involve folding multiple sheets of paper, each participant will create their own hexahedron.  Making Math Solid is a series that focuses on different polyhedra, highlighting their fascinating properties.  Materials needed: 6 to 10 sheets of origami paper or 6 to 10 paper squares (6″ by 6″).

Register for “Making Math Solid: Hexahedron” on May 25

Senior Sessions: “Prime Time”
Friday, May 28, 2:00 pm to 2:45 pm ET (New York)
Come explore modular arithmetic and prime numbers by learning about Cayley graphs, which resemble circular connect-the-dots patterns, but encode important mathematical information.  Turn multiplication problems into simple shapes and discover the surprising patterns that emerge. Materials needed: paper, pencil and printouts to be provided.  Optional materials: colored pens or markers.

Register for “Prime Time” on May 28

Senior Sessions: “Gallery of Graphs”
Tuesday, June 1, 2:00 pm to 2:45 pm ET (New York)
Dig into graph theory by exploring the connection between vertices and edges — and the walls of any house.  Discover a method to determine whether 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 learn what they have to do with bridges in 18th-century Prussia, all while enjoying a unique and accessible introduction to this sophisticated branch of mathematics.  Materials needed: pencil, paper, and colored pens or markers (4 colors).

Register for “Gallery of Graphs” on June 1

Senior Sessions: “Tangram Teasers”
Friday, June 4, 2:00 pm to 2:45 pm ET (New York)
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.  Optional materials: tangram puzzle set.

Register for “Tangram Teasers” on June 4

Senior Sessions: “Vote Counts: Tower of Power”
Monday, June 7, 2:00 pm to 2:45 pm ET (New York)
Explore the different ways power can be distributed in weighted voting systems.  These systems are those in which different groups have different amounts of votes, such as county delegations, government committees, and even the United States Electoral College.  Should the largest populations have the most power?  Should smaller groups have a voice?  Answering these questions is far more complex than simple majority rule, but modern mathematical analysis provides a useful lens through which to analyze unbalanced voting power.  (Please note: This is the third installment of the Vote Counts series; it is not necessary to have attended the other two.)  Materials needed: pencil and paper.

Register for “Vote Counts: Tower of Power” on June 7

Senior Sessions: “Making Math Solid: Octahedron”
Thursday, June 10, 2:00 pm to 2:45 pm ET (New York)
Explore geometry and discover the beautiful structure of polyhedra!  Using modular origami techniques that involve folding multiple sheets of paper, each participant will create their very own octahedron.  Making Math Solid is a series that focuses on different polyhedra, highlighting their fascinating properties.  Materials needed: 6 to 10 sheets of origami paper or 6 to 10 paper squares (6 inches by 6 inches).

Register for “Making Math Solid: Octahedron” on June 10

Senior Sessions: “Roping Around the World”
Tuesday, June 15, 2:00 pm to 2:45 pm ET (New York)
Come test your intuition with a mathematical problem about a rope tied around the Earth.  Explore the counterintuitive solution with an engaging, hands-on activity.  How can we use C=2πr to understand this intriguing problem?  Learn how simple models can help us better understand concepts that defy logic.  Materials needed: pencil, paper, ruler with inch measurements, tape, 3 paper clips, scissors, and sheet of 8-½ x 11 paper cut lengthwise into ½-inch strips.

Register for “Roping Around the World” on June 15

Senior Sessions: “Magic Squares”
Friday, June 18, 2:00 pm to 2:45 pm ET (New York)
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: pencil and paper.

Register for “Magic Squares” on June 18

Senior Sessions: “Hailstone Numbers”
Monday, June 21, 2:00 pm to 2:45 pm ET (New York)
Hail is formed when ice repeatedly travels up and down within a cloud, growing and shrinking until its mass is steady enough to fall to the ground as hail.  Hailstone numbers are repeated patterns of numbers with the same property.  They increase and decrease sporadically according to a set rule until they finally plummet in size and eventually become the number 1.  These number sequences are easy to create but often impossible to fully understand.  Come learn what these numbers are, why they are so mystifying, and how they might just represent the next big breakthrough in mathematics.  Materials needed: pencil and paper.

Register for “Hailstone Numbers” on June 21

Senior Sessions: “Möbius Mischief”
Thursday, June 24, 2:00 pm to 2:45 pm ET (New York)
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).

Register for “Möbius Mischief” on June 24

Senior Sessions: “Vote Counts: Ranking and Tanking”
Tuesday, June 29, 2:00 pm to 2:45 pm ET (New York)
Voting for a preference may seem simple, but when multiple options exist, the math gets complicated!  The different methods of counting the vote can often result in different winners.  Explore the mathematics behind various vote-counting systems and develop a deeper understanding of what it means for a system to be equitable.  Materials needed: pencil and paper.

Register for “Vote Counts: Ranking and Tanking” on June 29

Please note that program fees are non-refundable.  MoMath reserves the right to remove children from the program without refund.

Share the gift of math!  Gift registrations for Senior Sessions available at mathgift.momath.org.