Courses from 1000+ universities
Coursera sees headcount decrease and faces lawsuit in 2023, invests in proprietary content while relying on Big 5 partners.
600 Free Google Certifications
Artificial Intelligence
Web Development
Data Analysis
Terrorism and Counterterrorism: Comparing Theory and Practice
The Science of Happiness
Vital Signs: Understanding What the Body Is Telling Us
Organize and share your learning with Class Central Lists.
View our Lists Showcase
Dive into the world of group theory with CEC's 12-week course. Learn about binary operations, cyclic groups, homomorphisms, isomorphisms, and more. Includes weekly assignments and quizzes.
Get personalized course recommendations, track subjects and courses with reminders, and more.