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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: September 8, 2025

Grades 6-8

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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.
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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.
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Grades 2-3

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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: September 8, 2025

Grades 4-12

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Crafting Fiction
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: September 8, 2025

Grades 8-12

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Crafting Poetry
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: September 8, 2025

Grades 8-12

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Crafting the Essay - Workshop
Bring your experiences to life on the page in this personal essay course. Through 10 assignments, we will experiment with different essay forms to describe scenes, illustrate conflicts, narrate events ...
Next start date: September 8, 2025

Grades 7-10

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Creating Fantasy Worlds
What makes a fantasy world feel real in a reader’s mind? How do writers draw and keep readers’ attention while crafting these mythical places? In this course, we will apply geography, cartography, and ...
Next session begins: September 10, 2025

Grades 5-6

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Creative Nonfiction
In this course, we will read short works of nonfiction, analyze published authors' techniques, and practice specific writing skills in a supportive community of our peers. We will learn how to select ...
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Grades 7-11

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Cryptology: Cracking Codes
Unlock the world of secret communication in this engaging, fast-paced introduction to cryptology. Over six weeks, during live weekly sessions with your classmates and instructor, we’ll explore how ...
Next session begins: September 9, 2025

Grades 5-6

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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: September 14, 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: September 11, 2025

Grades 5-6

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Everyday Science
What can a bucket of water or lounging beneath a shade tree teach you about science? Archimedes discovered the principle of buoyancy in a bathtub, and Newton allegedly discovered gravity while sitting ...
Next session begins: September 14, 2025

Grades 2-3

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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: September 8, 2025

Grades 6-9

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From Structure to Style
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: September 8, 2025

Grades 7-10

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Game Theory and Strategy
Humans tend to make decisions based on emotions, rather than using cold, hard math—but when we learn to use strategy in decision-making, we can make more rational choices, minimize biases, and achieve ...
Next session begins: September 10, 2025

Grades 7-11

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