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 Enroll in a Circle
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All  circle timings are in Eastern timezone unless otherwise noted.

Note: Please note that although we have specific days and times of circles posted for facilitating online registration, there is some flexibility in scheduling. If you are interested in a circle but can’t make the day it is offered, email us and we’ll see if the schedule can be tweaked to suit you!

$250
Dots do much more than separate wholes from parts! Explore how to use these tiny symbols to represent big number concepts and other visual-spatial ideas!
$250
What happens when you wrap a number line around a circle? We'll experiment with unusual visualizations of counting that will shed new light on long-established relationships between numbers.
$200
We will explore the science of uncertainty and information with examples drawn from cards, coins, dice and sport.
$175
We will explore the mysterious magic squares which have dazzled people from all over the world since millennia ago.
$250
How does government work? Using our mathematical intuition, we'll see if we like the current way and, if not, plot a way to make it better.
$250
Projective Geometry from Fall 2019 continues and may morph into other non-Euclidean geometries now.
$250
How could the familiar counting numbers be puzzling when looked at closely? We'll reach for answers in this approach to Number Theory.
$175
We will be exploring the world of Algorithms--mysterious creatures that rule our modern society. Starting with the basic definition, we will go on to explore both very old and very new problems that humans somehow found out how to solve, using this amazing mathematical idea.