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.

Skills you'll gain: Unix Shell, Unix Commands, z/OS, Unix, File Systems, Job Control Language (JCL), Operating Systems, Command-Line Interface, OS Process Management, System Programming, File Management, Mainframe Computing, Debugging
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Javascript, Data Persistence, Scripting, Scripting Languages, Data Storage, Web Development, Functional Design, Data Structures, Business Logic, Game Design, Software Engineering
Beginner · Guided Project · Less Than 2 Hours

Johns Hopkins University
Skills you'll gain: Health Disparities, Health Equity, Community Health, Community Organizing, Social Determinants Of Health, Patient Advocacy, Social Justice, Health Care, Advocacy, Health Policy, Cultural Responsiveness, Community Development, Community Outreach, Public Health and Disease Prevention, Oncology, Immigration Law, Diversity Equity and Inclusion Initiatives, Discussion Facilitation
Beginner · Course · 1 - 4 Weeks
University of Colorado Boulder
Skills you'll gain: Engineering Analysis, Vibrations, Mechanics, Finite Element Methods, Differential Equations, Control Systems, Applied Mathematics, Mathematical Modeling, Linear Algebra, Calculus
Advanced · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Angular, Front-End Web Development, HTML and CSS, Responsive Web Design, React.js, JavaScript Frameworks, Web Development, Web Components, Web Development Tools, UI Components, User Interface (UI), Event-Driven Programming, Maintainability, Software Design Patterns
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: SQL, PostgreSQL, Query Languages, Database Management Systems, Database Management
Intermediate · Guided Project · Less Than 2 Hours

University of Colorado Boulder
Skills you'll gain: Physics, Physical Science, Materials science, Chemistry, Energy and Utilities, Mathematical Modeling, Applied Mathematics
Beginner · Course · 1 - 4 Weeks

University of Michigan
Skills you'll gain: Prompt Engineering, Large Language Modeling, Generative AI, Artificial Intelligence, Responsible AI, Visualization (Computer Graphics)
Beginner · Course · 1 - 4 Weeks

Simplilearn
Skills you'll gain: Object Oriented Programming (OOP), Programming Principles, Computational Thinking, Application Development, Python Programming, Computer Programming, Development Environment, Integrated Development Environments, Software Design, Software Installation
Beginner · Course · 1 - 4 Weeks

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Apache Spark, Scala Programming, Big Data, Data Manipulation, Distributed Computing, Data Processing, Performance Tuning, SQL, Data Persistence, Data Analysis, Programming Principles
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Systems Thinking, Environmental Laws, Sustainable Development, Climate Change Adaptation, Land Development, Community Development, Environmental Policy, Social Impact, Sustainable Design, Social Justice, Socioeconomics, Environmental Science, Climate Change Mitigation, Energy and Utilities
Beginner · Course · 1 - 3 Months

Skills you'll gain: Root Cause Analysis, Correlation Analysis, Regression Analysis, Data Collection, Descriptive Statistics, Statistical Hypothesis Testing, Statistical Analysis, Process Analysis, Six Sigma Methodology, Lean Six Sigma, Data Analysis, Process Improvement, Statistical Inference, Pareto Chart
Beginner · Course · 1 - 4 Weeks