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.

Codio
Skills you'll gain: Matplotlib, Statistical Hypothesis Testing, Data Analysis, Statistical Analysis, Data Import/Export, Data Cleansing, Probability & Statistics, Data Manipulation, Descriptive Statistics, Pandas (Python Package), Exploratory Data Analysis, Correlation Analysis, Python Programming, Programming Principles, Computer Programming, Computational Logic
Mixed · Course · 1 - 3 Months

Skills you'll gain: Writing, Writing and Editing, Honesty, Storytelling, Journals, Editing, Content Creation, Personal Development, Investigation, Self-Awareness
Beginner · Course · 1 - 4 Weeks

University of California San Diego
Skills you'll gain: Social Justice, Social Impact, Community Organizing, Climate Change Adaptation, Climate Change Mitigation, Environmental Issue, Sustainable Development, Social Determinants Of Health, Health Disparities, Social Sciences, Environmental Policy, Environment, Media and Communications, Physical Science, Scientific Methods, Interpersonal Communications, Environmental Science
Beginner · Course · 1 - 3 Months

Scrimba
Skills you'll gain: Responsive Web Design, UI Components, Cascading Style Sheets (CSS), Web Design, Front-End Web Development, User Interface (UI), Debugging, Web Development
Intermediate · Course · 1 - 4 Weeks

Politecnico di Milano
Skills you'll gain: Large Language Modeling, LLM Application, Learning Strategies, Education Software and Technology, AI Personalization, Lifelong Learning, AI Enablement, Human Learning, Adult Learning Principles, Prompt Engineering Tools, Artificial Intelligence, Student-Centred Learning, Generative AI, Critical Thinking
Beginner · Course · 1 - 4 Weeks

Dassault Systèmes
Skills you'll gain: SolidWorks (CAD), 3D Modeling, Computer-Aided Design, Assembly Drawing, Mechanical Design, Engineering Design Process, Mechanical Engineering
Beginner · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Python Programming, Simulations, Debugging, Pandas (Python Package), Program Development, Unit Testing, Test Case, Data Science, Software Design, Computational Thinking, Integration Testing, Computer Programming, Object Oriented Programming (OOP), Data Manipulation, Software Development
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Functional Behavior Assessment, Applied Behavior Analysis, Behavioral Health, Instructional Strategies
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Unity Engine, Debugging, C# (Programming Language), 3D Assets, Video Game Development, Scripting, Software Testing, User Interface (UI), Development Environment, Object Oriented Programming (OOP)
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Microsoft Azure, Data Security, Relational Databases, Disaster Recovery, Cloud Management, Databases, System Monitoring, Data Storage, Data Management, Microsoft SQL Servers, Cloud Storage, Role-Based Access Control (RBAC)
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Network Performance Management, Policy Development, Policy Analysis, Public Policies, Economics, Policy, and Social Studies, Business Economics, Socioeconomics, digital literacy, Telecommunications, Regulation and Legal Compliance, Technical Writing
Build toward a degree
Beginner · Course · 1 - 4 Weeks

University at Buffalo
Skills you'll gain: Manufacturing and Production, Production Process, Manufacturing Processes, Quality Control, Energy and Utilities, Workforce Development, Supply Chain, Electric Power Systems, Workforce Planning, Sustainable Technologies, Environmental Science
Beginner · Course · 1 - 3 Months