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Stanford professor Andrew Ng SM ’98 teaches Machine Learning, a 10-week Coursera MOOC. A key component of most MOOCs are lecture segments, pictured here, where instructors write notes and mark up slides.

Stanford’s Machine Learning homework assignments were MATLAB/Octave-based programming assignments and multiple-choice review questions, seen here. On each retry of a problem set, question parameters and answer choices...

EdX features a slick course progress interface that lets students easily see how many more points they need for a certain grade. Most of the 6.00x final grade derives from two midterms and a final exam, with problem s...

6.00x students developed an unusual fondness for Professor Eric Grimson PhD ’80, who is also MIT’s chancellor. After Grimson reappeared in a few lecture sequences ­— having been replaced for some lectures by Profs. Jo...

6.00x students earn credit for submitting code to online checkers. Feedback is instant, but limited: A green checkmark appears if your code passes all test cases, otherwise it lists failed tests.

IKE (Interdimensional Kinetic Entity), an alien creature from the puzzle-platformer video game Quantum Conundrum, developed by Airtight Games and published by Square Enix.

Allison Tovo-Dwyer G.

Brian G. Anderson ’13.