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.

University of California, Irvine
Skills you'll gain: Grammar, English Language
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Figma (Design Software), Responsive Web Design, User Interface and User Experience (UI/UX) Design, Usability, Web Design, User Experience, User Interface (UI), Typography, Design Elements And Principles, Layout Design, Color Theory, UI Components, Wireframing, Web Components, Mockups
Intermediate · Course · 1 - 3 Months

University of Michigan
Skills you'll gain: Histogram, Data Visualization, Data Literacy, Data Presentation, Descriptive Statistics, Data Storytelling, Statistics, Data Analysis, Statistical Visualization, Sampling (Statistics), Data Validation
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Executive Presence, Succession Planning, Organizational Structure, Diversity Equity and Inclusion Initiatives, Organizational Leadership, Engineering Management, Team Building, People Management, Team Leadership, Telecommuting, Business Leadership, Leadership, Leadership Development, Virtual Teams, Personal Development, Communication, Self-Awareness
Beginner · Course · 1 - 3 Months

Koç University
Skills you'll gain: Integral Calculus, Calculus, Advanced Mathematics, Mechanics, Applied Mathematics, Mathematical Theory & Analysis, electromagnetics, Derivatives, Physics
Mixed · Course · 1 - 3 Months

Skills you'll gain: Bootstrap (Front-End Framework), Browser Compatibility, Responsive Web Design, Web Design and Development, Cascading Style Sheets (CSS), Front-End Web Development, UI Components, React.js, Web Applications, Hypertext Markup Language (HTML)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Object Oriented Programming (OOP), Object Oriented Design, Java Programming, Java, Computer Programming, Data Validation, Data Integrity, Computer Science
Intermediate · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Cascading Style Sheets (CSS), Responsive Web Design, HTML and CSS, Web Design and Development, Front-End Web Development, Web Design, Computer Programming
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Unsupervised Learning, Dimensionality Reduction, Machine Learning Algorithms, Machine Learning, Applied Machine Learning, Data Science, Python Programming, Statistical Methods, Exploratory Data Analysis, Linear Algebra
Build toward a degree
Intermediate · Course · 1 - 4 Weeks

Amazon Web Services
Skills you'll gain: Software Architecture, Amazon Web Services, Amazon DynamoDB, Python Programming, Service Oriented Architecture, Cloud Computing Architecture, Microservices, Serverless Computing, Cloud Applications, Application Programming Interface (API), Databases, Scripting, Programming Principles, Automation, Relational Databases, Application Development, Development Environment
Beginner · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Climate Change Mitigation, Climate Change Adaptation, Environment, Sustainable Development, Physical Science, Environmental Science, Social Impact, Environmental Policy, Mathematical Modeling, Trend Analysis, Data Collection
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Model Evaluation, Responsible AI, Exploratory Data Analysis, Predictive Modeling, Data Visualization, Machine Learning, Policy Analysis, Statistical Methods, Data Science, Data Ethics, Development Environment, Software Engineering
Beginner · Guided Project · Less Than 2 Hours