A Line is Not a Simple Thing

Circle has 5 spots

Measuring a length may seem simple at first, but then we go ahead "into the wild" of the mathematical realm, and construct and measure the unmeasurable. How precise can measurements get? Do we really know enough about numbers to engage in these activities, or will we have to invent some funky math along the way?

10 - 12

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Avital

The Dragon's Reign

Circle has 5 spots

In the land of dragons, the earth is divided into squares parcels of different sizes. There is a secret configuration of square which allows magic to flow through the world. Can we find it?

6 - 7

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Dani

The Big Dinosaur

Circle has 5 spots

What will happen to Dino, The Big Dinosaur? He's lost, somewhere in a land of numbers! Let's explore the relationships between numbers, how they add, subtract, multiply and divide, on our journey to find him.

4 - 5

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Dani

Daring Designs

Circle has 5 spots

In this circle, we will take a deep dive into the beautiful and unpredictable world of dot designs. What sorts of designs can we make, and where will these explorations lead us?

10 - 12

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Taylor

The Lost Island

Circle has 5 spots

In this circle, we will look for a mysterious mathematical island that sunk thousands of years ago. We will search for hidden clues telling us the location of this Island. Will we find our Lost Island in four short days?

6 - 7

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Dani

Interstellar

Circle has 5 spots

In this Circle we will explore space, looking for patterns and trying to find the hidden secrets of the Universe.

4 - 5

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Dani

The Lost Gem

Circle has 5 spots

The Special Gem has been stolen, we need your help to find it! Could the mathematical clues that we find help us solve the case?

6 - 8

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Dani

The Mathematics of Decision Making

Circle has 5 spots

Have you ever wondered if you made the wrong choice? What would have happened if you had ordered the other topping on your pizza, or if you had gone to bed early instead of staying up late watching a movie? Mathematics is at the heart of these types of decisions. In this circle we will look at the possible outcomes, and how they affect the future.

8 - 10

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Mike

The Labyrinth

Circle has 5 spots

In this circle, we will get ourselves lost in a labyrinth full of challenges and mysterious paths that take us on serious mathematical adventures. Will we be able to find our way out of the maze?

6 - 7

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Dani

Welcome to the Jungle

Circle has 5 spots

We will go on a journey as math explorers solve puzzles and enigmas that are hidden inside the jungle! We will encounter mathematical obstacles and find the lost treasure of Banana Island.

4 - 5

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Dani

Colors and Patterns

Circle has 5 spots

By mixing colors and counting, we will find patterns of numbers. These mysterious patterns can magically lead us to geometric shapes and math tricks.

6 - 8

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Yiby

Tricky Tiles

Circle has 5 spots

In this circle, we'll start with a chessboard - but not for chess! We'll think about how to tile a chessboard with dominoes, triangles, and other shapes. Then, we'll turn our sights to tiling other surfaces with other objects, limited only by our imagination. Throughout the circle, we will think about shapes, how they go together, and all the marvelous properties they have!

8 - 10

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Kathleen

Can we get there from here?

Circle has 5 spots

What are the most efficient routes between objects in a network? How can we describe connections between places and paths? Ever wondered how GPS figures out the most efficient route? We will explore how (and if) we can get to different points on a map and discover how to think about both efficiency and possibility!

11 - 13

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Hilary

Funky Fractions

Circle has 5 spots

Most people are familiar with decimals that never end, such as the well-known 0.3333… (and so on). But what happens when a fraction goes on forever, with denominators overflowing the page?

9 - 12

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Taylor

Master the Art of Optimization

Circle has 5 spots

Many fascinating problems in mathematics involve trying to do the best you can with what you have: finding an optimal result for one variable given certain initial conditions. In these 8 sessions, we will explore the range of techniques for solving these problems that do not require a knowledge of calculus.

11 - 13

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Farzad

Bubbles, lines and dots

Circle has 5 spots

We will be exploring the mystery of shapes, dots, lines, and curves.

5 - 6

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Dani

Hand out to save the kingdom

Circle has 5 spots

There is a kingdom that needs to be saved from a dragon. Please join us in finding ways to distribute food among the population and the dragon to make them happier.

8 - 10

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Juan

Numbers Between Numbers with Cid

Circle has 5 spots

Is there anything between 1 and 2? How about 3 and 4? Exactly how many numbers are between these? What's the closest number to 1 without actually being 1? In this math circle we will explore different ranges of fractions and decimal numbers, and perhaps discover that infinity doesn't lie way out beyond the biggest number, but between any two.

5 - 7

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Cid

Numbers Between Numbers with Mike

Circle has 5 spots

Is there anything between 1 and 2? How about 3 and 4? Exactly how many numbers are between these? What's the closest number to 1 without actually being 1? In this math circle we will explore different ranges of fractions and decimal numbers, and perhaps discover that infinity doesn't lie way out beyond the biggest number, but between any two.

5 - 7

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Mike

Topics in Math

Circle has 5 spots

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10 - Adult

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Bob

Help Grow The Global Math Circle (7 - 8 Year Olds)

Circle has 5 spots

Training as a leader in math circles, Juan will lead a two-session circle for 7-8 year olds on a topic of interest. Training circles are full of energy and excitement. If your child is new to math circles and wants to try the experience, this circle is a great way to start. If, on the other hand, your child is a seasoned math circle participant, he or she will enjoy it, too! Tuition is free.

7 - 8

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Cid

Help Grow The Global Math Circle (9 - 10 Year Olds)

Circle has 5 spots

Training as a leader in math circles, Karolina will lead a two-session circle for 9-10 year olds on a topic of interest. Training circles are full of energy and excitement. If your child is new to math circles and wants to try the experience, this circle is a great way to start. If, on the other hand, your child is a seasoned math circle participant, he or she will enjoy it, too! Tuition is free.

9 - 10

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Cid

Help Grow The Global Math Circle (11 - 13 Year Olds)

Circle has 5 spots

Training as a leader in math circles, Ciro will lead a two-session circle for 11-13 year olds on a topic of interest. Training circles are full of energy and excitement. If your child is new to math circles and wants to try the experience, this circle is a great way to start. If, on the other hand, your child is a seasoned math circle participant, he or she will enjoy it, too! Tuition is free.

11 - 13

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Cid

Cook Up Some Math Delights

Circle has 5 spots

Chefs sometime cook without a recipe. The challenge is to select the essential ingredients, calculate the quantities, then put it all together by mixing and blending, and finally use proper techniques and temperature to cook the food. In this session, you will put on your chef’s apron and sharpen your knifes as we cook up some math delights.

11 - 13

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Farzad

It's a Pirate's Life: Storytelling with Algebra

Circle has 5 spots

Let math write the story! Pirates, mythical creatures, and fierce explorers are faced with mysteries of all sorts—why not help them solve peculiar problems and create an adventure at the same time? You never know when you'll need some algebra to defeat a sea monster or help a friend in need.

6 - 7

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Cid

Dancing Between Dimensions

Circle has 5 spots

Terms like 2D and 3D are familiar to most, but what would it mean for something to have a dimension somewhere in between, like 2.5? And how does this idea connect trees, crumpled paper balls, and the beach?

8 - 10

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Taylor

Help Grow The Global Math Circle (5 - 6 Year Olds)

Circle has 5 spots

Training as a leader in The Global Math Circle, Rafael will lead a two-session circle on a topic of interest to 5 and 6 year-olds. Training circles like this one are filled with energy and excitement. If your child is new to math circles, here is a great way to try the experience in just two weeks. On the other hand, seasoned math circle students enjoy training circles, too! Tuition is free.

5 - 6

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Cid

Mathematics of Origami

Circle has 5 spots

We’ll be folding papers marveling imaginative figures arising in front of our eyes; we’ll be unfolding them to grasp the traces of these tangible things. Lines, shapes or their shared points and joints, who could have foretold the story without putting them together using their own hands and attentive mind?

6 - 8

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Haibo

Tournament Time!

Circle has 5 spots

How can we schedule a sports tournament? In this circle, we'll think about the best and most fair way to arrange our games, as well as how many games we'll need to play. Once we've got the schedule settled, we'll expand the discussion. We might talk about other types of tournaments, how well we could predict the outcomes of the games, or something else entirely - we'll figure it out together!

8 - 10

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Kathleen

Tricky Triangles

Circle has 5 spots

In this math circle, we'll play with triangles. We'll construct them and explore their mysterious properties before we tinsel and splinter them into oblivion!

7 - 8

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Jessica

Mysterious Properties of Numbers Circle

Circle has 5 spots

Numbers go together in strange and mysterious ways! But this is not magic at all - it's math, and we will discover patterns, create rules, and uncover the reasoning behind the mystery.

6 - 7

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Tifin

A Pictorial Exploration of Algebra

Circle has 5 spots

Allow a pirate, sea horse, and krachen to take you on a mathematical exploration of the nautical world via numbers and algebra.

5 - 7

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Tifin

The Art of Problem Solving (Spring 2021)

Circle has 5 spots

We will collectively discuss and solve a few well-known, and seemingly unsolvable problems that require further thinking. These problems are not typical problems that you might see or hear about in a middle/high school classroom. They vary from algebra, logic, circle geometry, probability and fun puzzles. During these 10 sessions students will explore a handful of problem solving techniques, and feel the excitement of solving what at first glance seemed unsolvable.

11 - 13

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Farzad

Game theory

Circle has 5 spots

There is a strong connection between chess, the strategies of an army, and the prices of the fruits in the market, In this circle we will explore the beautiful concept of a game. We will understand how tic tac toe and the government decisions are deeply connected because in the bottom most of the human interactions are just games.

8 - 11

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Campo

Ternary (and Other Fun Bases) Arithmetic using Robots!

Circle has 5 spots

In this circle we will travel to a planet inhabited by robots that have the incredible property of merging if they are three of the same. With the help of these robots we will discover the amazing arithmetic shapes of this world. We will merge several groups of robots, determine which one is bigger, and even have fun doing some battles between them. We will understand that the essential properties of arithmetic arise naturally once we understand the most basic rules behind numbering.

7 - 9

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Campo

Hidden Inside Triangles

Circle has 5 spots

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9 - 11

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Bob

Puzzling Adventures in Math

Circle has 5 spots

We will collectively discuss and solve a few well-known, and seemingly puzzling problems that require further thinking. These problems vary from algebra, logic, circle geometry, probability and fun puzzles. During these 10 sessions students will explore a handful of problem solving techniques, and feel the excitement of solving what at first glance seemed unsolvable.

11-13

​

Farzad

Back of Beyond

Circle has 5 spots

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12 - Adult

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Bob

Finding Rules

Circle has 5 spots

How many inputs and outputs do you need to find a rule that just uses addition and subtraction? How about one that uses multiplication or division? What about other operations or mixes of them? Is there more than one rule that can work for various types of inputs and outputs? Explore how numbers relate to each other when we use different operations and how we can figure out what we are doing to them!

8 - 10

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Hilary

The Hidden Treasures

Circle has 5 spots

We intend to gain freedom and confidence by having the incontrovertible truths in the hidden maths of everyday life revealed. These discoveries will range from the treasures that maths keep hidden for us in all our daily actions, to experiences we will find through critical and creative thinking.

“If the Universe hand you a hard problem, try to solve an easier one instead and hope the simple version is close enough to the original problem that the universe doesn’t object” -Ellenberg

9 - 11

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Mike

The Mathematics of Virality

Circle has 5 spots

What do TikTok and the COVID-19 pandemic have in common? How come false rumors spread faster than the truth? Join to find out!

7-9

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Jessica

The Logic of Shapes

Circle has 5 spots

We will explore shapes both 2-D and 3-D to discover their relationships and patterns between them!

6-9

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Hilary

Dancing on the Number Line

Circle has 5 spots

We will explore the number line - what comes between two whole numbers, what happens when you dance with different types of leaps around on it, how patterns repeat and change depending on where you start, and even what may exist below zero.

5-6

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Hilary

Chaos and Order

Circle has 5 spots

If 2020 taught us anything, it's that the world is pretty unpredictable. Thankfully, math and science help us make sense of things when they appear to be senseless. If you like talking about the weather, alphabet soup, and/or the concept of infinity, this circle is for you.

6-8

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Jessica

The Optimal Box

Circle has 5 spots

Starting with a piece of paper, how can you make a box optimizing its volume? We will explore this through geometry and algebra, building our boxes and creating equations to show what we discover.

12+

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Hilary

Complicated Counting

Circle has 5 spots

We have a lot of practice counting tangible objects, like people or crayons. But how would we count something less tangible, like relationships between people, or color schemes you can create from a set of crayons?

8-10

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Taylor

Numbers and Nature (re-run)

Circle has 5 spots

(due to extra demand, we are duplicating the circle at different & differed starting time & date)
We will be discovering patterns and relations among numbers -- and explore how nature figured them out before we did.

8-10

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Jessica

Numbers and Nature

Circle has 5 spots

We will be discovering patterns and relations among numbers -- and explore how nature figured them out before we did.

8 - 10

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Jessica

A Line is Not a Simple Thing

Circle has 5 spots

Measuring a length may seem simple at first, but then we go ahead "into the wild" of the mathematical realm, and construct and measure the unmeasurable. How precise can measurements get? Do we really know enough about numbers to engage in these activities, or will we have to invent some funky math along the way?

10 - 12

​

Avital Oliver

The Dragon's Reign

Circle has 5 spots

In the land of dragons, the earth is divided into squares parcels of different sizes. There is a secret configuration of square which allows magic to flow through the world. Can we find it?

6 - 7

​

Daniela Motta

The Big Dinosaur

Circle has 5 spots

What will happen to Dino, The Big Dinosaur? He's lost, somewhere in a land of numbers! Let's explore the relationships between numbers, how they add, subtract, multiply and divide, on our journey to find him.

4 - 5

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