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 Colorado Boulder
Skills you'll gain: Systems Thinking, Environmental Laws, Sustainable Development, Climate Change Adaptation, Community Development, Land Development, Social Impact, Sustainable Design, Social Justice, Stormwater Management, Environmental Policy, Policy Analysis, Sustainable Technologies, Public Works, Civil Engineering, Climate Change Mitigation, Public Policies, Socioeconomics, Environmental Issue, Environmental Science
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Azure Active Directory, Authentications, Authorization (Computing), Microsoft Azure, Identity and Access Management, Active Directory, User Provisioning, Role-Based Access Control (RBAC), Single Sign-On (SSO), User Accounts, Cloud Security, Security Engineering, Multi-Factor Authentication
Intermediate · Course · 1 - 4 Weeks
University of Michigan
Skills you'll gain: Exploratory Data Analysis, Rmarkdown, R (Software), Tidyverse (R Package), Statistical Visualization, Data Visualization, Data Visualization Software, R Programming, Ggplot2, Data Wrangling, Scatter Plots, Data Manipulation, Histogram, Scripting, Package and Software Management, Data Import/Export
Beginner · Course · 1 - 4 Weeks

Edureka
Skills you'll gain: Angular, TypeScript, Web Components, JavaScript Frameworks, UI Components, Web Development Tools, Web Applications, Front-End Web Development, Software Architecture, Command-Line Interface, Routing Protocols, Cascading Style Sheets (CSS), Service Oriented Architecture
Beginner · Course · 1 - 4 Weeks

Codio
Skills you'll gain: Algorithms, Data Structures, Java, Theoretical Computer Science, Computer Programming, Computational Thinking
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Routing Protocols, TCP/IP, Network Switches, Virtual Local Area Network (VLAN), Network Protocols, Network Security, Network Routing, Network Troubleshooting, Computer Networking, Open Shortest Path First (OSPF), Dynamic Host Configuration Protocol (DHCP), Border Gateway Protocol, Firewall, Proxy Servers, Encryption, Authentications
Intermediate · Course · 1 - 3 Months

Codio
Skills you'll gain: Prompt Engineering, OpenAI API, Generative AI, Animations, Image Analysis, Graphics Software, Computer Graphics, Application Programming Interface (API), Pandas (Python Package), Integrated Development Environments
Beginner · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Test Driven Development (TDD), Unit Testing, Development Testing, Software Testing, Testability, Java, Test Case
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: HTML and CSS, Hypertext Markup Language (HTML), Web Development, Web Applications, Web Design and Development, Cascading Style Sheets (CSS), Web Design
Beginner · Guided Project · Less Than 2 Hours

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

Skills you'll gain: Prompt Engineering, Business Workflow Analysis, Generative AI Agents, AI Workflows, Business Process Automation, Generative AI, AI Enablement, Tool Calling, Process Optimization, No-Code Development
Intermediate · Course · 1 - 3 Months

Vanderbilt University
Skills you'll gain: IntelliJ IDEA, Java Programming, Object Oriented Programming (OOP), Java, Integrated Development Environments, Computer Programming, Open Source Technology, Programming Principles, Scalability, Functional Design
Intermediate · Course · 1 - 4 Weeks