Number theory courses can help you learn prime numbers, divisibility rules, modular arithmetic, and integer properties. You can build skills in problem-solving, logical reasoning, and algorithmic thinking, that support tackling complex mathematical challenges. Many courses introduce tools like Python for implementing algorithms and mathematical software for exploring number patterns, enabling you to apply your knowledge in practical situations such as cryptography and coding theory.

Technical University of Denmark (DTU)
Skills you'll gain: Environmental Regulations, Environmental Laws, Environment, Environmental Policy, Environmental Management Systems, Ethical Standards And Conduct, Systems Thinking, Law, Regulation, and Compliance, Cost Benefit Analysis, Case Studies
Mixed · Course · 1 - 3 Months

Yale University
Skills you'll gain: Liberal Arts, Environment, Culture, Biology, Creativity, Anthropology, Systems Thinking, Social Studies, Timelines, Environmental Science, Physics, Scientific Methods
Mixed · Course · 1 - 3 Months
Google Cloud
Skills you'll gain: Presentations, Google Workspace, Productivity Software, Sales Presentations, Business Communication, Version Control, Collaborative Software, Multimedia, Data Sharing
Beginner · Course · 1 - 3 Months

Illinois Tech
Skills you'll gain: Database Systems, Relational Databases, Database Management, Database Theory, Databases, SQL, Database Design, Database Management Systems, Database Architecture and Administration, Data Access, Query Languages, Data Modeling, Data Manipulation, User Accounts
Build toward a degree
Beginner · Course · 1 - 4 Weeks

Multiple educators
Skills you'll gain: Policy Analysis, Innovation, Systems Thinking, Storytelling, Visionary, Sociology, Social Sciences, Creative Thinking, Economics, Policy, and Social Studies, Social Impact, Sustainable Development, Sustainable Systems, Social Justice, Cultural Diversity, Critical Thinking, Case Studies, Environmental Science, Spatial Analysis, Human Centered Design, Public Policies
Intermediate · Specialization · 3 - 6 Months

Universidad Nacional Autónoma de México
Skills you'll gain: NoSQL, Database Systems, MongoDB, Database Management Systems, Databases, Database Design, Relational Databases, Query Languages, Apache Cassandra, Data Storage Technologies, Scalability, Graph Theory, Unstructured Data, Maintainability
Intermediate · Course · 1 - 3 Months

Peking University
Skills you'll gain: Algorithms, Programming Principles, Computer Programming, Graph Theory, Computational Thinking, Data Structures, Program Development
Mixed · Course · 1 - 3 Months

École Polytechnique
Skills you'll gain: Physics, Mechanics, Linear Algebra, Probability, Calculus, Differential Equations, Mathematical Theory & Analysis, Advanced Mathematics, Experimentation
Intermediate · Course · 1 - 3 Months

University of Michigan
Skills you'll gain: Internet Of Things, Manufacturing and Production, Digital Transformation, Business Technologies, Cloud Computing, Automation, Operational Efficiency, Emerging Technologies, Technology Strategies, Real Time Data, Data-Driven Decision-Making, Case Studies, Scalability
Build toward a degree
Beginner · Course · 1 - 4 Weeks

University of Rochester
Skills you'll gain: Music History, Music, Music Theory, Musical Composition, Instrumental Music, Music Performance, Creativity
Beginner · Course · 1 - 3 Months

Michigan State University
Skills you'll gain: Unity Engine, Animations, 3D Modeling, Storyboarding, Color Theory, Animation and Game Design, 3D Assets, Video Game Development, Adobe Photoshop, Autodesk Maya, Computer Graphics, Game Design, Conceptual Design, Prototyping, Graphic and Visual Design, Computer Graphic Techniques, Design, Data Import/Export, Design Elements And Principles, Design Research
Beginner · Specialization · 3 - 6 Months

Universidad de los Andes
Skills you'll gain: Emotional Intelligence, Teamwork, Community Organizing, Team Management, Leadership, Strategic Leadership, Empathy, Conflict Management, Social Media, Systems Thinking, Communication, Active Listening
Intermediate · Course · 1 - 4 Weeks