Fragen zu Übungen und Videos

How do I report mistakes in videos?

Why are Khan Academy videos not playing for me?

Why did I get the problem wrong when entering the correct math expression?

Why am I getting the problem wrong when entering the correct answer?

How do I report a mistake or issue with an exercise?

Wie gebe ich in einer Übung Mathe-Symbole ein?

What happens to my Mastery and Energy points when I start an activity over?

Why can't I vote on a comment?

Was sind Energiepunkte, Abzeichen und Avatare?