Class Coupon - Online Course Discounts & Learning Deals

Short answer: Duolingo works for the things it measures. Reading, listening, vocabulary, and showing up every day. The company’s own efficacy research is honest about that, and the numbers are real.

Speed reading courses promise several thousand words a minute with full comprehension. The research does not support it. Beyond a certain rate, the gains come out of comprehension rather than…

Your brain does not treat all visual information equally. A review in the Malaysian Journal of Medical Sciences found that warm colors — red and yellow in particular — are remembered significantly…

There is a reason phone numbers carry dashes. Working memory holds only a handful of items at once, and grouping information into meaningful chunks lets a single slot carry far more than a single…

In 1885 Hermann Ebbinghaus memorized lists of nonsense syllables and tested himself at intervals, producing what we now call the forgetting curve. His numbers are bleak: roughly 58% of new material…

edX hosts dozens of professional certificates, but the pricing model, time commitment, and career value vary far more than the catalog pages suggest. We maintain coupon and enrollment pages for eight…