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.

Dartmouth College
Skills you'll gain: Demography, Environment, Environmental Science, Environmental Issue, Nutrition and Diet, Sustainable Development, Natural Resource Management, Sustainability Standards, Cultural Diversity, Trend Analysis
Beginner · Course · 1 - 4 Weeks

Kennesaw State University
Skills you'll gain: Six Sigma Methodology, Lean Six Sigma, Process Analysis, Analysis, Process Improvement, Project Documentation, Quality Improvement, Customer Analysis, Continuous Quality Improvement (CQI), Project Management, Business Process, Project Scoping
Mixed · Course · 1 - 3 Months

University of Cambridge
Skills you'll gain: Childhood Education and Development, Human Learning, Child Development, Psychology, Teaching, Decision Making, Learning Theory, Instructional Strategies, Learning Strategies, Empathy, Neurology, Magnetic Resonance Imaging, Disabilities, Autism Spectrum Disorders, Medical Imaging, Special Education, Electrophysiology, Differentiated Instruction, Human Development, Non-Verbal Communication
Beginner · Specialization · 3 - 6 Months

University of Cape Town
Skills you'll gain: Climate Change Adaptation, Water Resources, Water Sustainability, Sustainable Development, Environmental Policy, Water Resource Management, Environmental Science, Environment, Natural Resource Management, Socioeconomics, Vulnerability, Governance
Beginner · Course · 1 - 3 Months

Tecnológico de Monterrey
Skills you'll gain: Social Media, LinkedIn, Facebook, Social Media Strategy, Social Network Analysis, Professional Networking, Digital Media Strategy, Cross-Channel Marketing, Business Strategies, Customer Engagement, Digital Communications
Mixed · Course · 1 - 4 Weeks

University of Michigan
Skills you'll gain: Demography, Environmental Regulations, Environmental Policy, Environment Health And Safety, Pollution Prevention, Environment, Public Health, Environmental Science, Occupational Health, Hazardous Waste Operations And Emergency Response Standard (HAZWOPER), Radiation Protection, Water Quality, Community Health
Beginner · Course · 1 - 4 Weeks
University of Illinois Urbana-Champaign
Skills you'll gain: Strategic Leadership, Leadership Development, Team Leadership, Business Leadership, Team Management, Leadership and Management, Team Building, Organizational Strategy, Strategic Decision-Making, Business Planning, Business Strategy, Leadership, Growth Strategies, Market Opportunities, Business Priorities, Organizational Structure, Change Management, Process Improvement and Optimization, Operational Efficiency, Data-Driven Decision-Making
Beginner · Course · 1 - 3 Months

Shanghai Jiao Tong University
Skills you'll gain: Sports Medicine, Immunology, Exercise Science, Exercise Therapy, Public Health and Disease Prevention, Research, Cultural Responsiveness, Mindfulness, Stress Management, Infectious Diseases, Respiration, Mental Health Therapies
Beginner · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Cost Management, Project Management Institute (PMI) Methodology, Project Risk Management, Scope Management, Project Management, Project Scoping, Project Management Life Cycle, Resource Management, Project Controls, Risk Management, Project Planning, Communication Planning, Risk Mitigation, Quality Management, Project Estimation, Stakeholder Management, Scheduling, Stakeholder Communications, Timelines, Procurement
Intermediate · Course · 1 - 4 Weeks

University of Copenhagen
Skills you'll gain: Gerontology, Competitive Analysis, Design Thinking, Demography, Innovation, Rehabilitation, Intellectual Property, Health Technology, Chronic Diseases, Health Systems, Health Care, Value Propositions, Business Modeling, Business Strategy, Project Management
Intermediate · Course · 1 - 3 Months

Peking University
Skills you'll gain: Music History, World Music, Classical Music, Music, Music Theory, Music Performance, Musical Composition
Beginner · Course · 1 - 3 Months
University of Pennsylvania
Skills you'll gain: Demography, Market Trend, Trend Analysis, International Relations, Socioeconomics, Global Marketing, Social Sciences, Systems Thinking, Cultural Diversity, Political Sciences, Financial Systems, Economics, Business Economics, Governance
Mixed · Course · 1 - 4 Weeks