Algorithms (opens provider site in a new tab)
A gentle, visual introduction to searching, sorting, recursion, and graphs.
Free Beginner
Khan Academy
Free, nonprofit lessons and practice from arithmetic to computer science and personal finance. Content is licensed CC BY-NC-SA 3.0.
4 picks · 4 free · appears in 4 feeds · khanacademy.org · Content licensed CC BY-NC-SA 3.0
Beginner
Intro to SQL: Querying and Managing Data (opens provider site in a new tab)
Friendly talk-through lessons for complete beginners, with in-browser practice after each.
Free Beginner
In: SQL & Databases
Personal Finance (opens provider site in a new tab)
Budgeting, credit, loans, taxes, and investing basics explained plainly, with practice questions.
Free Beginner
In: Personal Finance
Statistics and Probability (opens provider site in a new tab)
Complete, patient coverage from averages to inference, with practice for every skill.
Free Beginner
In: Statistics
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