Pre-calculus courses can help you learn functions, trigonometry, complex numbers, and polynomial equations. You can build skills in graphing functions, solving equations, and understanding limits, which are crucial for calculus and other advanced math topics. Many courses introduce tools like graphing calculators and software for visualizing functions, which enhance your ability to analyze mathematical concepts and apply them in various fields such as engineering, physics, and computer science.

Illinois Tech
Skills you'll gain: Design Thinking, Global Marketing, Entrepreneurship, Business Modeling, Innovation, Team Building, Storytelling, Market Research, Team Management, Oral Expression, Entrepreneurial Finance, New Product Development, Business Strategies, Project Design, Team Leadership, Fundraising and Crowdsourcing, Financial Planning, Customer Engagement, Business Ethics, Competitive Analysis
Build toward a degree
Intermediate · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: JUnit, Testability, Unit Testing, Software Testing, Test Case, Test Tools, Java
Intermediate · Course · 1 - 4 Weeks
Skills you'll gain: Software Quality Assurance, Quality Assurance, Test Automation, Test Tools, Acceptance Testing, Agile Software Development, Test Case, Software Testing, Continuous Integration, User Acceptance Testing (UAT), Agile Methodology, User Story, Automation, Analysis, Collaboration
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Open Source Technology, Package and Software Management, Linux, Ubuntu, Operating System Administration, Linux Administration, Linux Commands, Operating Systems, Unix, Command-Line Interface, File Systems, Linux Servers, Unix Commands, Red Hat Enterprise Linux, Bash (Scripting Language), Shell Script, Web Servers, System Configuration, General Networking, Firewall
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Intermediate · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Model View Controller, Spring Framework, Java, Security Assertion Markup Language (SAML), Web Applications, Software Architecture, Transaction Processing, Data Validation, Verification And Validation
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Operating System Administration, Local Area Networks, Software Installation, Command-Line Interface, Microsoft Windows, System Configuration, System Support, Desktop Support, TCP/IP, Linux, General Networking, Patch Management, Operating Systems, User Accounts, Network Routers, System Monitoring, Hardware Troubleshooting, Network Troubleshooting, Mac OS, Network Security
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Systems Development Life Cycle, Software Development Life Cycle, Systems Development, Software Development Methodologies, Change Management, Project Management, System Implementation, Compliance Auditing, Software Testing, Auditing, Development Testing, Information Technology, Verification And Validation, Project Management Office (PMO), Internal Controls, Governance, Agile Methodology, Software Development, Data Integrity, Risk Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Performance Testing, Test Tools, Software Testing, Test Data, Data Validation, Scripting, Application Performance Management, Distributed Computing, Software Installation, Servers
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Marketing Automation, Application Programming Interface (API), Google Sheets, Make.com, Calendar Management, ChatGPT, Content Creation, Digital Marketing, Content Marketing, Prompt Engineering, Automation, Content Strategy, Brand Management, Project Management
Intermediate · Guided Project · Less Than 2 Hours

University of Colorado Boulder
Skills you'll gain: Verification And Validation, Computational Logic, Theoretical Computer Science, Automation, System Testing, Systems Design, System Design and Implementation, Algorithms
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Intermediate · Course · 1 - 4 Weeks

University of California, Davis
Skills you'll gain: Construction Estimating, Risk Management, Cost Estimation, Project Estimation, Construction Management, Estimation, Bidding, Construction, Cost Management, Verification And Validation, Workflow Management, Business Ethics, Budgeting, Project Management, Engineering Plans And Specifications
Mixed · Course · 1 - 3 Months

Skills you'll gain: Open Web Application Security Project (OWASP), Threat Modeling, Application Security, Software Development Life Cycle, DevSecOps, Security Testing, Secure Coding, Security Software, Security Engineering, Cloud Security, Encryption, Vulnerability Scanning, Software Development, Threat Detection, Cryptography, Software Testing, CI/CD, Cloud Platforms, Vulnerability Assessments, Configuration Management
Intermediate · Course · 3 - 6 Months