Guide to the MATLAB Academy platform, which offers 24 courses with a free certificate of completion.

Unlike multiple-choice questions, peer-reviewed assessments are manually graded by other learners.

TL;DR Duolingo reported Q4 2025 revenue of $282.9 million (+35% YoY), closing its first billion-dollar year, breaking estimates again. The stock dropped 22.5% anyway. Again. The company plans to slow down monetization to grow to 100 million DAUs until 2028, by focusing on teaching quality, giving more to free users, and growing non-language courses. Duolingo’s Q4 2025 results confirmed something we highlighted in its 2025 review: growth is slowing. The company crossed a billion dollars in r

Are you new to programming or do you know a beginner programmer? Have you looked at pages of code and thought it’s just too hard to even try to learn programming? There is an easy way: welcome to the world of Scratch! Created in 2007 by the Lifelong Kindergarten Group at MIT, Scratch was designed as an easy, fun introduction to programming for children. But you don’t need to be a child to appreciate Scratch. In CS50’s Introduction to Programming with Scratch, I enjoyed personalizing the cartoon