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.

Skills you'll gain: Canva (Software), Logo Design, Branding, Brand Strategy, Graphic Design, Target Audience, Social Media Content, Marketing Materials, Social Media, Scheduling, Presentations, Content Creation, Social Media Marketing
Beginner · Guided Project · Less Than 2 Hours

University of Amsterdam
Skills you'll gain: Sociology, Systems Thinking, Economics, Policy, and Social Studies, Cultural Diversity, Policy Analysis, Sustainable Systems, Environmental Science, Spatial Analysis, Case Studies, Qualitative Research, Environment and Resource Management, European History
Intermediate · Course · 1 - 3 Months

University of California San Diego
Skills you'll gain: Bioinformatics, Dimensionality Reduction, Unsupervised Learning, Applied Machine Learning, Molecular Biology, Machine Learning, Data Analysis Software, Exploratory Data Analysis
Intermediate · Course · 1 - 4 Weeks

Lund University
Skills you'll gain: Climate Change Adaptation, Sustainable Development, Sustainable Design, Governance, Water Sustainability, Systems Thinking, Environmental Resource Management, Environmental Science, Climate Change Mitigation, Case Studies, Water Resources, Business Modeling, Stakeholder Engagement, Project Finance
Beginner · Course · 1 - 3 Months

Vanderbilt University
Skills you'll gain: Prompt Engineering, Anthropic Claude, Multimodal Prompts, Version Control, Generative AI Agents, Git (Version Control System), Generative AI, Software Quality Assurance, Software Development, Mockups, Test Automation, Software Documentation, Artificial Intelligence, Software Development Life Cycle, Software Architecture, Automation, Software Testing, Software Design, Software Development Methodologies
Beginner · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Computational Thinking, Data Collection, Simulations, Data Analysis, Microsoft Visual Studio, C (Programming Language), Analysis, Automation, Program Development, Data Structures, Programming Principles, Algorithms, Computer Programming, Theoretical Computer Science, Data Storage, Data Store, Descriptive Statistics, Problem Management, Data Visualization Software, File Management
Beginner · Specialization · 3 - 6 Months

University of Colorado System
Skills you'll gain: Sustainability Reporting, Sustainable Business, Corporate Sustainability, Organizational Change, Sustainable Development, Sustainable Design, Proposal Development, Stakeholder Analysis, Environmental Social And Corporate Governance (ESG), Supply Chain Management, Sustainability Standards, Leadership and Management, Performance Improvement, Change Management, Stakeholder Engagement, Key Performance Indicators (KPIs), Financial Analysis, Energy and Utilities, Systems Thinking, Proposal Writing
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Sustainable Development, Socioeconomics, Community Development, Sustainable Business, Governance, Systems Thinking, Multimedia, Case Studies, Innovation, Stakeholder Engagement, Analysis, Consumer Behaviour
Beginner · Course · 1 - 3 Months

University of California, Irvine
Skills you'll gain: Presentations, English Language, Verbal Communication Skills, Communication, Non-Verbal Communication, Entrepreneurship, Microsoft PowerPoint, Business Communication, Sales, Interpersonal Communications, Project Management, Business Leadership, Crisis Management, Organizational Structure, Marketing, Leadership and Management, Business, Vocabulary, Telecommuting, Human Resources
Intermediate · Specialization · 1 - 3 Months

The University of Sydney
Skills you'll gain: Social Media Strategy, Professional Networking, Data Ethics, Social Network Analysis, Analytics, Media and Communications, Social Sciences, Content Creation, Business Ethics, Information Privacy
Mixed · Course · 1 - 3 Months

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

Skills you'll gain: Adobe Illustrator, Color Theory, Graphic and Visual Design, Design, Design Elements And Principles, Graphic Design, Typography, Adobe Creative Cloud, File Management
Beginner · Guided Project · Less Than 2 Hours