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.

University of Colorado Boulder
Skills you'll gain: Database Design, Database Management Systems, Database Development, Relational Databases, Database Theory, Databases, Database Architecture and Administration, Data Modeling, Data Integrity, Metadata Management, Dependency Analysis
Beginner · Course · 1 - 4 Weeks

Technical University of Denmark (DTU)
Skills you'll gain: Biotechnology, Process Engineering, Chemical and Biomedical Engineering, Chemical Engineering, Sterilization, Biological Engineering, Microbiology, Process Control, Cell Cultures, Production Process, Biochemistry, Scalability, Manufacturing Processes, Process Development, Molecular Biology, Cell Biology, Sterile Procedure
Beginner · Course · 1 - 3 Months
University of Pennsylvania
Skills you'll gain: Diversity Programs, Team Building, Diversity Training, Diversity and Inclusion, Diversity Awareness, Team Management, Employee Coaching, Diversity Equity and Inclusion Initiatives, Goal Setting, Intercultural Competence, Emotional Intelligence, Team Leadership, Team Performance Management, Workplace inclusivity, Systems Thinking, Presentations, Cognitive flexibility, Case Studies, Collaboration, Cultural Diversity
Beginner · Specialization · 3 - 6 Months

University of Copenhagen
Skills you'll gain: Sustainable Development, Sustainable Systems, Water Sustainability, Sustainable Business, Waste Minimization, Supply Chain, Systems Thinking, Climate Change Mitigation, Land Management, Environment and Resource Management, Innovation, Nutrition and Diet, Public Policies, Case Studies
Beginner · Course · 1 - 3 Months

Commonwealth Education Trust
Skills you'll gain: Curriculum Development, Curriculum Planning, Teaching, Education and Training, Instructional and Curriculum Design, Pedagogy, Student-Centred Learning, Collaboration, Learning Theory, Planning
Mixed · Course · 1 - 3 Months

University of Minnesota
Skills you'll gain: Design Thinking, Process Mapping, Kanban Principles, User Experience Design, Lean Methodologies, Lean Manufacturing, Agile Software Development, Product Development, Lean Six Sigma, Process Improvement, Software Development, Software Development Methodologies, Continuous Improvement Process, Innovation, Prototyping
Beginner · Course · 1 - 4 Weeks

Eindhoven University of Technology
Skills you'll gain: Telecommunications, Electronics, Electrical Engineering, Electronic Systems, Wireless Networks, Engineering Design Process, Simulation and Simulation Software, Engineering Analysis, Engineering Calculations, Computer-Aided Design, Physics, Process Design
Intermediate · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Real-Time Operating Systems, Embedded Systems, Embedded Software, Hardware Architecture, Electronic Systems, Performance Tuning, Systems Architecture, Software Architecture, Verification And Validation, System Programming, Debugging, Software Design, System Design and Implementation, Linux, Software Technical Review, Systems Engineering, Operating Systems, Software Systems, System Software, Systems Design
Build toward a degree
Intermediate · Specialization · 3 - 6 Months

University of California San Diego
Skills you'll gain: Growth Mindedness, Technical Communication, Willingness To Learn, Adaptability, Algorithms, Overcoming Obstacles, Software Engineering, Verbal Communication Skills, Interpersonal Communications, Communication, Problem Solving, Self-Awareness, Complex Problem Solving
Intermediate · Course · 1 - 3 Months
University of Illinois Urbana-Champaign
Skills you'll gain: Design Thinking, Intellectual Property, 3D Modeling, Innovation, Prototyping, Manufacturing and Production, Entrepreneurship, Education and Training, Community Development
Beginner · Course · 1 - 3 Months

Skills you'll gain: Professional Networking, Interviewing Skills, LinkedIn, Professional Development, Data Analysis, Recruitment, Data Storytelling, Relationship Building, Presentations, Analytical Skills, Portfolio Management, Business Writing
Beginner · Course · 1 - 4 Weeks
Duke University
Skills you'll gain: Pandas (Python Package), Bash (Scripting Language), Version Control, Jupyter, Linux Commands, Git (Version Control System), Shell Script, Linux, Web Scraping, Linux Administration, Data Manipulation, MySQL, Microservices, AWS SageMaker, SQL, JSON, Cloud Engineering, Python Programming, Big Data, Data Science
Beginner · Specialization · 3 - 6 Months