“We think we can make the playing field more level by making the best-in-class tool and making it free. We hope that beyond individual students, these tools become adopted by after-school and college readiness programs.”

With a huge influx of donations from Silicon Valley’s most notable philanthropists, Khan Academy quickly evolved from a YouTube lecture series to a full-blown personalized learning platform. When their new prep test software launches in spring 2015, students will have access to an artificially intelligent learning experience that diagnoses weaknesses and charts in a step-by-step path to improvement — rather than pick up a $30 one-size-fits all SAT prep book.TechCrunch.