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: Amazon S3, Amazon Web Services, Cloud Hosting, Version Control, Application Deployment, Cloud Storage, Web Design and Development, Public Cloud
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Canva (Software), Storytelling, Color Theory, Data Sharing, Organizational Skills, Graphic and Visual Design, Graphic and Visual Design Software, Graphic Design, Content Creation, Digital Design, Dashboard, User Accounts, Design Elements And Principles, Marketing
Intermediate · Guided Project · Less Than 2 Hours

Johns Hopkins University
Skills you'll gain: Scientific Methods, Research, General Science and Research, Critical Thinking, Probability, Research Design, Bayesian Statistics, Probability & Statistics, Research Methodologies, Experimentation, Investigation, Statistical Methods
Beginner · Course · 1 - 3 Months

Fundação Instituto de Administração
Skills you'll gain: Systems Thinking, Surveys, Innovation, Simulations, Forecasting, Contingency Planning, Strategic Thinking, Simulation and Simulation Software, Process Flow Diagrams, Project Design, Systems Analysis, Corporate Strategy, Business Planning, Strategic Planning, Complex Problem Solving, Business Strategy, Strategic Decision-Making, Analysis, Diagram Design, Verbal Communication Skills
Intermediate · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: C++ (Programming Language), Data Structures, File I/O, Data Store, Data Cleansing, Data Mapping, Data Integrity
Intermediate · Guided Project · Less Than 2 Hours

Peking University
Skills you'll gain: Music History, World Music, Classical Music, Music, Music Theory, Music Performance, Musical Composition
Beginner · Course · 1 - 3 Months

American Psychological Association
Skills you'll gain: Diversity Awareness, Sociology, Psychology, Cultural Diversity, Human Development, Social Sciences, Learning Theory, Biology, Research
Beginner · Course · 3 - 6 Months

Skills you'll gain: Feature Engineering, Data Ethics, Unsupervised Learning, Dimensionality Reduction, Responsible AI, Text Mining, Data Preprocessing, Data Transformation, MLOps (Machine Learning Operations), Anomaly Detection, Exploratory Data Analysis, Machine Learning Methods, Machine Learning, Model Evaluation, Natural Language Processing, Data Science, Quality Assurance, Data Pipelines, Data Visualization, Python Programming
Advanced · Course · 1 - 4 Weeks

Berklee
Skills you'll gain: Music Theory, Music, Instrumental Music, Music Performance
Beginner · Course · 1 - 3 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, Video Production, Content Strategy, Web Content, Media and Communications, Content Creation, Journalism, digital literacy, Mobile Development Tools, Research, Digital Communications, Investigation, Social Network Analysis, Trend Analysis, Verification And Validation, Open Source Technology
Beginner · Specialization · 3 - 6 Months

Skillshare
Skills you'll gain: Storyboarding, Animations, Storytelling, Motion Graphics, Multimedia, Musical Composition, Adobe After Effects, Photo/Video Production and Technology, Video Editing, Apple software proficiency, Timelines, Layout Design, Color Theory, Design
Beginner · Specialization · 1 - 3 Months
University of Rochester
Skills you'll gain: Market Dynamics, Supply And Demand, Economics, Policty Analysis, Research, and Development, Price Negotiation, Public Policies, Market Analysis, Competitive Analysis, Consumer Behaviour, Strategic Thinking
Intermediate · Course · 1 - 4 Weeks