Shadow

1. Cộng đồng
2. Mobile Platform Questions and Feedback
3. training for our technicians

Khan Academy has math lessons from basic to complex skills. You can find the math section at https://www.khanacademy.org/math

1. Cộng đồng
2. Content Requests and Feedback
3. Add tutorial for Python

Khan Academy used to have Python tutorials, but they have been removed for the time being. You can still find them here.

1. Cộng đồng
2. General Khan Academy Questions
3. Leveling down instead of up.

Hi Brian,When you answer a question incorrectly, the mastery system generally interprets that as you needing more practice with that certain skill. Research suggests that skills are learned best wh...

1. Cộng đồng
2. Technical Issues and Workarounds
3. mysterious changing answers (SAT practice test)

Hi ejmorro,My best guess here is that the answers may be randomized. This means that while something is "B" in the overview, it is randomized to "D" when you take it. Can you check and see if the t...