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.

MathWorks
Skills you'll gain: Computer Vision, Model Evaluation, Image Analysis, Matlab, Data Preprocessing, Machine Learning, Classification Algorithms, Machine Learning Algorithms, Data Validation
Beginner · Course · 1 - 4 Weeks

Knowledge Accelerators
Skills you'll gain: General Data Protection Regulation (GDPR), Information Privacy, Personally Identifiable Information, Law, Regulation, and Compliance, Compliance Management, Regulation and Legal Compliance, Regulatory Requirements, Data Ethics, Compliance Reporting, Data Governance, Data Security, Data Management, Data Integrity, Data Processing
Beginner · Course · 1 - 3 Months

Scrimba
Skills you'll gain: HTML and CSS, Mobile Development, ChatGPT, GitHub, Front-End Web Development, Javascript, Application Deployment, Web Development, Responsive Web Design, Video Game Development, Application Development, Cascading Style Sheets (CSS), Computer Programming, Database Application, Machine Learning
Beginner · Course · 1 - 3 Months

Rice University
Skills you'll gain: Physics, Mechanics, electromagnetics, Vibrations, Materials science, Applied Mathematics, Geometry, Physical Science, Trigonometry, Mathematical Modeling, Advanced Mathematics, Calculus, Differential Equations, Linear Algebra, Engineering Analysis, Algebra, Integral Calculus, Problem Solving
Intermediate · Specialization · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Sustainable Development, Sustainable Engineering, Sustainable Technologies, Sustainable Business, Sustainability Standards, Organizational Leadership, Corporate Sustainability, Strategic Leadership, Business Leadership, Environment, Architectural Design, Building Design, Climate Change Mitigation, Environmental Science, Environmental Engineering, Energy and Utilities, Environmental Policy, Economics
Build toward a degree
Intermediate · Course · 1 - 3 Months

28DIGITAL
Skills you'll gain: File I/O, Data Structures, Theoretical Computer Science, Data Storage Technologies, Algorithms, Graph Theory, Data Access, Performance Tuning
Advanced · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Physics, General Science and Research, Scientific Methods, Environment, Scientific Visualization, Safety Assurance, Simulations, Mathematical Modeling
Beginner · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Human Development, Biology, Child Development, Music, Decision Making, Liberal Arts, Education and Training, Psychology, Science and Research, Scientific Methods, Business Economics, Clinical Trials
Beginner · Course · 1 - 3 Months

The Chinese University of Hong Kong
Skills you'll gain: Art History, Ancient History, World History, Cultural Diversity, Anthropology, Sociology, Policy Analysis, Political Sciences, Economics, Governance
Mixed · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Data Analysis, Analytics, Statistical Analysis, Data Mining, Spreadsheet Software, Exploratory Data Analysis, Descriptive Analytics, Quantitative Research, Data Processing, Data Cleansing, Data Collection, Statistics, R (Software), Predictive Analytics, Query Languages, Data Visualization, Data Visualization Software, SQL
Beginner · Course · 1 - 3 Months

Skills you'll gain: Android Studio, Android Jetpack, Responsive Web Design, UI Components, Kotlin, Mobile Development, User Interface (UI) Design, User Interface (UI), Cross Platform Development, Animations
Intermediate · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: ASP.NET, Restful API, .NET Framework, Web Services, JSON, Model View Controller, Web Applications, Back-End Web Development, API Design, Application Programming Interface (API), Extensible Markup Language (XML), Server Side, Application Security, Object-Relational Mapping, Middleware
Intermediate · Course · 1 - 4 Weeks