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Arduino® Prototyping
What do punch-activated flamethrowers, automatic pet feeders, and mind-controlled drones have in common? They’re all real devices built and programmed using Arduino® microprocessors. This open-source ...
Next session begins: January 22, 2025

Grades 7-10

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Art Meets Science: Literature
In this creative writing course, we’ll explore poetry, fiction, drama, and non-literary works that use science as inspiration. After reading scientific poems, science fiction short stories, and a play ...
Next start date: January 21, 2025

Grades 8-10

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Art Meets Science: Nonfiction
In this course, we’ll read works inspired by science and art and use them as models to write and revise personal essays that explore the genre of nonfiction. You’ll reflect on personal experiences ...
Next start date: January 21, 2025

Grades 6-8

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Backyard Habitats
What creatures live around you, and how can you tell? How does gardening or mowing the lawn affect local animals and plants? What happens to bathtub water after it goes down the drain? Explore your ...
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Grades 3-4

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Be a Biologist!
What can we learn from fossilized plants? What do biologists do as they study humans, plants, and animals? In this course, we’ll answer these questions and others as we learn about different types of biology, the study of living things, and the job requirements of various biologists.
Next session begins: January 25, 2025

Grades 2-3

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Be an Environmental Scientist!
Why do animals adapt? What are the advantages of renewable energy? What do environmental scientists do? In this course, we’ll answer these questions and others as we learn about different types of environmental science and scientists who work in this expansive field.
Next session begins: January 25, 2025

Grades 2-3

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Behavioral Economics
Why is it so hard to hail a cab in the rain in New York City? Why do some people pay for annual gym memberships when they would save on a pay-as-you go basis? Integrate ideas from the social sciences ...
Next session begins: June 16, 2025

Grade 10+

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Building Blocks
Start building your communication superpowers by learning just how cool words and language can be! In this course you will study excerpts from classic stories like Alice's Adventures in Wonderland,  ...
Next start date: January 21, 2025

Grades 3-4

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Catching the Criminal
Print evidence can place suspects at a crime scene, identify missing persons, and exonerate the innocent. Begin with an overview of the history of print evidence, focusing on fingerprints, footprints ...
Next session begins: January 22, 2025

Grades 5-6

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Cause Unknown
Jordan is an 8-year-old orphaned girl of color with an unknown past who you are evaluating for seemingly unrelated ailments. As you implement her medical care, you'll consider its implications for her ...
Next start date: June 16, 2025

Grades 7-10

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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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Color of Law
Stories of discrimination capture headlines in America daily, reflecting how the promise of equal protection under the law is still unrealized for people of color. The United States is far from alone ...
Next session begins: June 16, 2025

Grade 9+

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Crafting Fiction (NCAA Approved)
Learn to master the core elements of fiction writing, such as plot, theme, dialogue, and character development by reading and analyzing short works of fiction and writing your own. Assignments are ...
Next start date: January 21, 2025

Grade 8+

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Crafting Poetry (NCAA Approved)
An introduction to poetry and poetic concepts, this course covers musical aspects of poetry, the patterns and conventions of sound, and the effects they have on readers. Imagery in poems is also ...
Next start date: January 21, 2025

Grade 8+

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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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CTY Reading Challenge
Calling all enthusiastic readers! Do you like talking about books almost as much as you like reading them? Join our 12-week reading challenge to meet other curious and motivated readers and talk about books. This course meets six times over 12 weeks and is guided by an instructor. Every two weeks, we’ll take up a new challenge: to select and read a book that satisfies the challenge category. In between meetings, we’ll engage in virtual discussions and prepare reviews on the book(s) we’ve read.
Next session begins: January 25, 2025

Grades 6-8

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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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Diagnosis: Be the Doctor
Doctors often have to make quick decisions based on their knowledge, experience, and a short list of symptoms—it’s not so easy to always get it right, and lives are often on the line. Drawing upon ...
Next session begins: January 25, 2025

Grades 7-10

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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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Engineering Design
Engineering design is a rich, sometimes chaotic blend of concerns: aesthetic, financial, material, theoretical, environmental, and practical. Explore elements of design theory while responding to a ...
Next session begins: June 16, 2025

Grades 7-10

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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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Fantasy Worldbuilding
What draws audiences into the settings of their favorite fantasy worlds? What makes these otherwise mythical places feel like real locations in readers’ minds? In this course, we’ll use applications ...
Next session begins: January 22, 2025

Grades 5-6

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From Structure to Style (NCAA Approved)
Develop your writing style and study advanced English mechanics in this rigorous grammar course. Guided by a college-level textbook and multicultural reading excerpts, you will deepen your ...
Next start date: January 21, 2025

Grades 7-10

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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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Grossology
The human body is an amazing but sometimes gross thing. From the blood inside us to the gas that comes out, each slimy, gunky, or smelly part has a vital role to play in keeping us healthy. Why do we ...
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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Household Chemistry
Discover the role that chemistry plays in your everyday life in this experiment-intensive course. Through hands-on chemistry activities, you’ll learn about the states of matter, explore different ...
Next start date: January 21, 2025

Grades 3-5

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Imagination Workshop
Imaginative writing is a powerful tool. As authors, our written pieces can make someone laugh, change their mind, or even help them better understand the world. How can you do this in just a page, a ...
Next session begins: January 25, 2025

Grades 5-6

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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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Introduction to Chess
Introduction to Chess provides new or beginning students with a strong foundation in the game’s rules and strategies, and a community of enthusiasts to learn alongside. You’ll begin with a brief ...
Next start date: January 21, 2025

Grades 3-8

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Introduction to Complex Analysis
This course will introduce you to the theory of functions of a complex variable—a core area of mathematics. We will also cover complex numbers and their properties, analytic functions and the Cauchy ...

Grade 10+

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Introduction to Logic and Proofs
Explore advanced mathematical concepts in fun and interesting ways and build a strong foundation for high school, computer science, and college-level logic coursework in this introductory logic class ...
Next start date: January 21, 2025

Grade 7+

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Inventions in Engineering
Calling all inventors! CTY’s Inventions in Engineering course introduces young students to the imaginations, habits, and characteristics of successful inventors, and the history and impact of their ...
Next start date: January 21, 2025

Grades 3-5

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