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.

LearnQuest
Skills you'll gain: JUnit, Test Driven Development (TDD), Unit Testing, Test Case, Software Testing, Mockups, Eclipse (Software), Test Script Development, Test Data, Development Testing, Test Automation, Test Execution Engine, Integrated Development Environments, Testability, Java
Intermediate · Specialization · 1 - 3 Months

University of Michigan
Skills you'll gain: Environmental Regulations, Sustainable Development, Environmental Policy, Climate Change Mitigation, Energy and Utilities, Climate Change Adaptation, Environment and Resource Management, Environmental Science, Health Assessment, Public Health, Pollution Prevention
Beginner · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Jupyter, Microservices, AWS SageMaker, Cloud Engineering, Command-Line Interface, Data Pipelines, CI/CD, Package and Software Management, Containerization, Applied Machine Learning, Python Programming, Test Automation, Algorithms
Intermediate · Course · 1 - 4 Weeks

Curtis Institute of Music
Skills you'll gain: Classical Music, Instrumental Music, Music, Music Performance, Music History
Beginner · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Social Studies, Social Sciences, Sociology, Anthropology, Media and Communications, Cultural Diversity, Environment and Resource Management
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Verification And Validation, Pharmacology, Environmental Science, Research, Safety Assurance, Scientific Methods, Food Quality Assurance And Control, Laboratory Research, Biostatistics, Bioinformatics, Research Methodologies, Research Design, Epidemiology, Risk Analysis, Statistical Analysis
Beginner · Course · 1 - 3 Months

Skills you'll gain: Verification And Validation, Theoretical Computer Science, System Testing, System Software, Systems Design, Software Architecture, Embedded Systems
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Analysis, Data Cleansing, Microsoft Excel, Exploratory Data Analysis, Data Manipulation, Data Preprocessing, Data Quality, Excel Formulas
Intermediate · Guided Project · Less Than 2 Hours

Vanderbilt University
Skills you'll gain: Claude Code, Prompt Engineering, Multimodal Prompts, Version Control, AI Workflows, Generative AI Agents, Git (Version Control System), AI Orchestration, Quality Assurance, Generative AI, Software Quality Assurance, Software Development, Software Documentation, Artificial Intelligence, Software Development Life Cycle, Software Architecture, Automation, Software Testing, Software Design, Software Development Methodologies
Beginner · Course · 1 - 3 Months

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

Skills you'll gain: Java Platform Enterprise Edition (J2EE), Object-Relational Mapping, Java, Application Servers, Middleware, Application Deployment, Data Persistence, Event-Driven Programming, Enterprise Application Management, Server Side, Context Management, Business Logic
Intermediate · Course · 1 - 4 Weeks

Meta
Skills you'll gain: Full-Stack Web Development, Front-End Web Development, Django (Web Framework), Scalability, Responsive Web Design, Web Applications, Back-End Web Development, MySQL, Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), Cloud Computing, Application Programming Interface (API), Virtual Environment, Javascript, Database Management
Intermediate · Course · 1 - 3 Months