Courses to engage and inspire

177 Courses

Paradoxes and Infinities

Grades 7–11

Mathematics

This course explores conundrums and analyzes a range of mathematical and philosophical paradoxes. You'll consider Zeno's paradoxes of space and time, such as The Racecourse, in which Achilles...
Modality

No sections are open for enrollment at this time.
Please check back later.

Identification Level
Quantitative - CTY-Level

Persuasion and Propaganda

Grades 7–11

Language Arts

Comic book heroes punching dictators in the face and aircrafts papering the ground with pamphlets,these types of propaganda are easy to recognize, but what about contemporary ones, like bot-generated...
Modality

No sections are open for enrollment at this time.
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Identification Level
Verbal - Advanced CTY-Level

Philosophy

Grades 7–11

History and Social Science

Do we have free will, or do our brains automatically respond to stimuli? What, if anything, distinguishes right from wrong? Philosophers relentlessly pursue fundamental questions of life, and their...
Modality

No sections are open for enrollment at this time.
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Identification Level
Verbal - CTY-Level

Planning for Life on Mars

Grades 4–5

Science and Engineering

For decades, scientists have looked to Mars as an untapped resource, one that possibly holds clues to the origins of the solar system as well as the potential for future colonization. Numerous...
Next Start Date: Jan 28, 2026 + 1 more dates
Modality
Online
Identification Level
Quantitative - CTY-Level
Verbal - CTY-Level

Predicting Pandemics

Grades 7–11

Mathematics

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...
Modality

No sections are open for enrollment at this time.
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Identification Level
Quantitative - CTY-Level

Principles of Engineering Design

Grades 7–11

Science and Engineering

Humanity's unending quest to find the most efficient and cost-effective means to make life better has created engineering marvels,from the world's tallest tower, the Burj Khalifa in Dubai, to the...
Modality

No sections are open for enrollment at this time.
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Identification Level
Quantitative - CTY-Level

Probability and Game Theory

Grades 7–11

Mathematics

The study of probability and game theory allows students to apply math to real-world situations. In this course, you'll learn to use some of the major tools of game theory, a branch of mathematics...
Modality

No sections are open for enrollment at this time.
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Identification Level
Quantitative - Advanced CTY-Level

Problem-Solving Strategies: Visualizing Solutions

Grades 4–5

Mathematics

Good problem-solving strategies can help us deal with a wide range of problems we encounter in all facets of our lives. In this course, we'll explore diagrams and physical representations and...
Modality

No sections are open for enrollment at this time.
Please check back later.

Identification Level
Quantitative - CTY-Level

Roving Robots: Engineering for Space Missions on Mars

Grades 5–6

Robotics and Technology

Sojourner, Spirit, and Opportunity—robots sent by NASA to explore Mars—all outlasted their missions but were ultimately bested by the planet’s harsh conditions. Sojourner lost its base station, Spirit...
Next Start Date: Jan 28, 2026 + 1 more dates
Modality
Online
Identification Level
Quantitative - CTY-Level

Skillshop Challenge: Chess Club

Grades 4–10

Mathematics

In CTY’s Skillshop Challenge: Chess Club, you’ll join a community of regular players who share your passion for the game while sharpening your tactics, strategies, and confidence. Each week, you’ll...
Next Start Date: Mar 23, 2026
Modality
Online
Identification Level
Quantitative - CTY-Level

Skillshop Challenge: Intermediate Competitive Math

Grades 4–8

Mathematics

This Skillshop Challenge is for students who have some foundation in competitive math to deepen their understanding and prepare for competitions. Students and their classmates will tackle challenging...
Next Start Date: Mar 25, 2026
Modality
Online
Identification Level
Quantitative - CTY-Level

Skillshop Challenge: Introductory Competitive Math

Grades 3–5

Mathematics

In this Skillshop Challenge, you’ll strengthen your foundation in competitive mathematics while exploring new problem-solving strategies in a supportive and collaborative setting. Designed for...
Next Start Date: Mar 26, 2026
Modality
Online
Identification Level
Quantitative - CTY-Level

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