John Tangen

1. Cộng đồng
2. Feature Requests and General Site Feedback

Hello! I have a great idea for Khan academy. Students should be able to download the review page in a subject to a PDF file. This would allow student to review the information at another time witho...

1. Cộng đồng
2. Study Group

Hello all! Would appreciate some help with this. While im doing the exercises for algebre like term i come across problems that i cant seem to do. When i read the get a hint part it says: when ther...