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Computer programming; AP®︎/College Computer Science Principles; Computers and the Internet; Pixar in a Box; See all Computing; Reading & language arts; Up to 2nd grade (Khan Kids) 2nd grade; 3rd grade; 4th grade; 5th grade; 6th grade reading and vocab. NEW. 7th grade reading and vocab. NEW.

Aug 30, 2013 · Today we're launching programming challenges, a major new part of Khan Academy Computer Science! We have been working on designing and building the challenge platform over the last few months, and we're excited to introduce you to our first iteration.

Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Khan Academy is a nonprofit with the mission of providing a free, world-class education for anyone, anywhere.

ওহ! কোনো একটি সমস্যা হয়েছে। অনুগ্রহ করে আবার চেষ্টা কর।

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Վաա՜յ։ Ինչ-որ բան այն չէ։ Խնդրում ենք փորձել կրկին։ Կարծես սխալմունք կա։ Հարկավոր է թարմացնել։ Եթե խնդիրը դեռ առկա է, տեղեկացրու մեզ։

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