First aid courses can help you learn how to recognize common emergencies, understand basic response principles, and communicate effectively with trained professionals. You can build skills in identifying signs of illness or injury, assessing situations safely, and applying general preparedness concepts. Many courses introduce frameworks, scenario-based learning, and tools that support building confidence in responding to unexpected events.

Imperial College London
Skills you'll gain: Health Systems, Health Policy, Health Assessment, Public Health and Disease Prevention, Public Health, Health Care, Health Disparities, Health Promotion, Social Determinants Of Health
★ 4.7 (84) · Beginner · Course · 1 - 4 Weeks

The Hong Kong University of Science and Technology
Skills you'll gain: Matlab, Engineering Analysis, Mathematical Software, Mechanical Engineering, Numerical Analysis, Mathematical Modeling, Applied Mathematics, Simulation and Simulation Software, Differential Equations, Mechanics, Calculus
★ 5 (45) · Intermediate · Course · 1 - 4 Weeks

DeepLearning.AI
Skills you'll gain: AI Orchestration, Agentic Workflows, Generative AI Agents, Agentic systems, LLM Application, Tool Calling, Software Design Patterns
★ 4.6 (52) · Beginner · Project · Less Than 2 Hours

Yale University
Skills you'll gain: Environmental Issue, Environment, Biology, Environment and Resource Management, Social Justice, Culture, Natural Resource Management, International Relations, Sustainable Development, Sustainable Systems, Life Sciences, Anthropology, World History, Intercultural Competence, Liberal Arts, Ethical Standards And Conduct, Cultural Diversity, European History, Climate Change Mitigation, Advocacy
★ 4.8 (65) · Beginner · Course · 1 - 3 Months

Duke University
Skills you'll gain: Storytelling, Personal Integrity, Compassion, Habit Formation, Ethical Standards And Conduct, Optimism, Aesthetics, Growth Mindedness, Resilience, Empathy, Social Justice, Liberal Arts, Teaching, Creativity, Self-Awareness, Community Outreach, Music, Leadership, Diversity Awareness
★ 4.6 (48) · Beginner · Specialization · 3 - 6 Months

Imperial College London
Skills you'll gain: Brainstorming, Creative Problem-Solving, Ideation, Creative Thinking, Problem Solving, Creativity, Innovation, Decision Making, Analysis
★ 4.8 (66) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Dashboard, Dashboard Creation, Data Warehousing, Data Presentation, Relational Databases, Database Development, Data Access, Database Management, SQL, Query Languages, Data Management, Data Analysis, Data Analysis Software, Cloud Computing, Benchmarking, Market Share
★ 4.4 (56) · Beginner · Guided Project · Less Than 2 Hours

University of Colorado Boulder
Skills you'll gain: Chemical Engineering, Chemistry, Thermal Management, Mechanical Engineering, Process Engineering, Analytical Chemistry, Engineering Calculations, Numerical Analysis, Differential Equations, Physics, Applied Mathematics, Simulation and Simulation Software, Energy and Utilities
★ 4.4 (83) · Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Agile Methodology, Sprint Retrospectives, Agile Project Management, Sprint Planning, Registration, User Story, Backlogs, Team Management
★ 4.9 (61) · Advanced · Course · 1 - 4 Weeks
University of Michigan
Skills you'll gain: Logistic Regression, Forecasting, Data Processing, Predictive Analytics, Predictive Modeling, Statistical Modeling, Data Analysis, Market Data, Analytics, Regression Analysis, Data Preprocessing, Model Evaluation, Python Programming, Probability & Statistics, Data Ethics, Probability, Ethical Standards And Conduct
★ 4.5 (43) · Intermediate · Course · 1 - 3 Months

Board Infinity
★ 4 (69) · Intermediate · Course · 1 - 4 Weeks

The University of Sydney
Skills you'll gain: Advanced Mathematics, Integral Calculus, Calculus, Mathematical Theory & Analysis, Differential Equations, Applied Mathematics, Trigonometry, Mathematical Modeling, Linear Algebra, Physics, Numerical Analysis, Derivatives
★ 4.7 (34) · Intermediate · Course · 1 - 4 Weeks