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Chess Club
Welcome to the club! In CTY’s Chess Club, students who enjoy playing the game come together to practice their chess tactics and strategies in a community setting. Through forum discussion and the ...
Next start date: January 21, 2025

Grade 4+

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Cryptology: Math and Codes
Make and break secret codes in this exciting introductory cryptology course. You’ll begin with simple Caesar ciphers, learning to encrypt and decrypt messages as well as the history behind the cipher ...

Grades 5-7

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Data and Chance
This is an Online course adapted from the On-Campus course Data and Chance. Your CTY friend teaches you a dice game. If you roll a 4, you win and the game ends. If your friend rolls a 5, they win and the game ends. You take turns rolling until one person wins. If you roll first, what is the probability you will win? This course explores probability and statistics, two areas of mathematics that easily transfer from the classroom to the real world.
Next session begins: January 25, 2025

Grades 5-6

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Disease Modeling
When the threat of pandemic looms, all eyes turn to the experts. Each outbreak is unique and raises different concerns; in providing answers, infectious diseases specialists rely on data and accurate ...
Next session begins: June 16, 2025

Grades 7-10

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Elementary Number Theory
Register before December 17, 2024 to start on or before December 31, 2024. This course is not accepting enrollments starting after December 31, 2024. In this course we’ll get to know the deep theory ...

Grade 7+

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Excursions in Pre-algebra
Explore how mathematics relates to food, art, and history in this interactive pre-algebra course. Through weekly meetings, collaborative activities, and hands-on projects, you’ll sharpen your ...
Next start date: January 21, 2025

Grades 6-9

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Game Design
What counts as a game? What are games made of? How are successful games designed and built? Read theory that orients you to how games work, why people play them, and what makes a good game. Play ...
Next session begins: June 16, 2025

Grades 7-10

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Geometric and Spatial Reasoning
Geometric and spatial reasoning skills are essential for living in and making sense of the world around us. Everything from solving a jigsaw puzzle to arranging furniture to efficiently packing a bag ...
Next session begins: January 22, 2025

Grades 3-4

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High School Competitive Math Club
Want to solve problems and learn strategies with other kids who love competitive math? Then welcome to the club! Through weekly meetings and asynchronous forum discussion, you’ll work with a small ...
Next start date: January 21, 2025

Grade 7+

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Honors Algebra I
Explore variables, expressions, and linear, exponential, and quadratic function applications in this full-length online Honors Algebra I course. We’ll use modeling and real-life scenarios to extend ...

Grades 6-9

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Honors Algebra II
This full-length online Honors Algebra II course expands upon topics introduced in Algebra I to teach you how to manipulate and apply more advanced functions and operations to polynomials, radicals ...

Grades 7-11

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Honors Geometry
This course covers concepts typically offered in a full-year honors geometry course. You’ll explore geometric proofs, triangle relationships, transformations, right triangle trigonometry, circles ...

Grades 6-11

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Honors Grade 3 Mathematics
This course covers a full-year honors curriculum, aligned with the Common Core State Standards, to prepare students for success in grade 4 mathematics. We’ll start by reviewing grade 2 concepts and ...

Grades 2-3

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Honors Grade 4 Mathematics
Tackle lessons typically offered in a full year of honors math curriculum in this intensive course that offers a review of Grade 3 topics and prepares you for Grade 5 mathematics. Engage with videos ...

Grades 2-4

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Honors Grade 5 Mathematics
Tackle a full year of honors mathematics with this Grade 5 curriculum that will set you up for success in Grade 6 honors math. You’ll begin by reviewing concepts such as algebraic variables and ...

Grades 3-5

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Honors Grade 6 Mathematics
Tackle a full year of honors mathematics with this Grade 6 curriculum that will set you up for success with Honors Pre-Algebra. In this course, students will be introduced to the theory and ...

Grades 4-6

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Honors Grade 7 Mathematics
This full-year, Common Core-aligned course explores proportional relationships, statistical sampling, linear expressions and equations, and two- and three-dimensional geometry. You’ll grow comfortable ...

Grades 5-7

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Honors Grade 8 Mathematics
This full-year Common Core-aligned course focuses on the study of algebraic manipulation and graphical interpretations as you cover topics taught in preparation for Honors Algebra I. You’ll grow ...

Grades 6-8

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Intermediate Chess
In Intermediate Chess, you will expand your knowledge of tactics and strategies in the game of chess. Starting with opening goals, you will learn tactical motifs and strategies to employ through a ...
Next start date: January 21, 2025

Grade 4+

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Introduction to Abstract Mathematics
Construct logical arguments as a proof to verify mathematical statements in this college-level course that follows Multivariable Calculus and builds upon Linear Algebra. Techniques and methods of ...

Grade 10+

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