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: Graphic and Visual Design, Graphic Design, Graphic and Visual Design Software, Adobe Photoshop, Creative Design, Typography, 3D Modeling, Color Theory, Visualization (Computer Graphics), Color Matching, Computer Graphic Techniques
Intermediate · Guided Project · Less Than 2 Hours

Dartmouth College
Skills you'll gain: Music History, Classical Music, Music, Music Theory, Musical Composition, Music Performance, Performing Arts
Mixed · Course · 1 - 3 Months

Columbia University
Skills you'll gain: Systems Thinking, Social Justice, Social Sciences, Complex Problem Solving, Political Sciences, Policy Analysis, Persuasive Communication, Personal Development, Critical Thinking, Simulations, Mathematical Modeling, Climate Change Mitigation
Beginner · Course · 1 - 3 Months

ESSEC Business School
Skills you'll gain: Sustainable Business, Corporate Sustainability, Sustainable Development, Business Transformation, Environmental Social And Corporate Governance (ESG), Systems Thinking, Business Modeling, Waste Minimization, Innovation, Product Lifecycle Management, Case Studies, Resource Utilization, Stakeholder Engagement
Beginner · Course · 1 - 4 Weeks

Parsons School of Design, The New School
Skills you'll gain: Sustainable Architecture, Sustainable Design, Construction, Materials Management, Procurement, Architectural Engineering, Sustainable Development, Sustainability Standards, Environmental Engineering, Systems Thinking, Waste Minimization, Health And Safety Standards, Innovation
Intermediate · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Cooperation, Interactive Learning, Education Software and Technology, Student Engagement, Pedagogy, Instructional Strategies, Learning Theory, Teaching, Student-Centred Learning, Collaboration, Teamwork, Blended Learning, Drive Engagement, Classroom Management, Mathematics Education, Learning Management Systems, Creative Problem-Solving, Professional Development, Problem Solving, Technology Solutions
Beginner · Course · 1 - 3 Months

University of Illinois Urbana-Champaign
Skills you'll gain: Food and Beverage, Supply Chain, Transportation, Supply Chain, and Logistics, Supply Chain Management, Supply Chain Systems, Sustainable Development, Environmental Issue, International Relations, Economics, Market Dynamics, Supply And Demand, Technology Solutions, Regulatory Requirements
Intermediate · Course · 1 - 4 Weeks

Skillshare
Skills you'll gain: Video Editing, Color Matching
Beginner · Specialization · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Verification And Validation, Systems Design, Theoretical Computer Science, Systems Analysis, Computer Architecture, Software Architecture, Simulations, Graph Theory, Hardware Architecture, Logical Reasoning
Beginner · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Ruby (Programming Language), Object Oriented Programming (OOP), Ruby on Rails, Debugging, Programming Principles, Software Documentation, Scripting Languages, Development Environment, Integrated Development Environments, Computer Programming, Development Testing, Data Structures, Apple Xcode, Web Development, Software Installation, Microsoft Windows, Package and Software Management, Command-Line Interface
Intermediate · Specialization · 3 - 6 Months

Radio y Televisión Española
Skills you'll gain: Social Media Content, Social Media Strategy, Live Streaming, Photo/Video Production and Technology, Social Media Management, Content Strategy, Web Content, Media and Communications, Content Creation, Journalism, Mobile Development Tools, Research, Digital Communications, Investigation, Social Network Analysis, Trend Analysis, Verification And Validation, Facebook, Data Validation, Open Source Technology
Beginner · Specialization · 3 - 6 Months

Banco Interamericano de Desarrollo
Skills you'll gain: Risk Analysis, Risk Management, Risk Modeling, Hazard Analysis, Mitigation, Project Risk Management, Failure Analysis, Risk Mitigation, Disaster Recovery, Failure Mode And Effects Analysis, Climate Change Adaptation, Vulnerability Assessments, Public Policies, Quantitative Research, Qualitative Research
Advanced · Course · 1 - 4 Weeks