Khan academy Android App

The description of Khan academy: Khan academy allows you to learn almost anything for free. You can learn anything for free: over 10 000 videos and explanations at your fingertips in math science economics history and much much more sharpen your skills: over 40 000 interactive common core aligned practice questions are included with instant feedback and step by step hints. Follow along with what you re learning in school or practice at your own pace quickly find what you need: redesigned navigation and search make it faster to find what you want keep learning even when you re offline: bookmark your favorite content to your list for easy access and download it to keep learning even when you re not connected to the internet. Pick up where you left off: your learning syncs between your android and so your progress is always up to datelearn using videos interactive exercises and in depth articles in math (arithmetic pre algebra algebra geometry trigonometry statistics calculus linear algebra) science (biology chemistry physics) economics and even the humanities with playlists on art history civics finance and more..