“In a traditional classroom, the spread between the fastest and slowest students grows over time, [and so] putting them all in one class cohort eventually makes it exceedingly difficult to avoid either completely boring the fast students or completely losing… — Salman Khan Copy Share Image
![“In a traditional classroom, the spread between the fastest and slowest students grows over time, [and so] putting them all in one class cohort eventually makes it exceedingly difficult to avoid either completely boring the fast students or completely losing the slow ones. Most school systems…” quote by Salman Khan](https://sms4smile.com/quotes/img-quotes/129/salman-khan-12862_education_in-a-traditional-classroom-the-spread-be_294453.jpg)