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No. Talking is the quickest way, but you can type every answer instead — Mr. Cadabra treats both exactly the same. And the youngest students don't need to type at all: they say their answers out loud, with big answer buttons right there too.

First you get a hint. Miss again and he explains it a different way, working the steps right on the board. He never makes you feel bad about a wrong answer — he gets curious about it, because wrong answers show him exactly how to help you.

No — and that's on purpose. He'll ask the next small question, drop hints, and re-explain, but you do the thinking. If you're truly stuck, he shows the way warmly and you move on together.

Yes. Open Practice and bring the exact problem from school — he works through it with you, step by step, without just doing it for you. You leave knowing how, not just what.

Your progress saves automatically — quizzes, badges, streaks, everything. Even a placement assessment picks up right where you stopped if you come back within a couple of days. Sign in with the same code on any computer, tablet, or phone and it's all there.

Score 90% or better on a Unit Quiz and that unit's merit badge is yours. Master all nine units and the course trophy goes in your trophy case. Medals reward the work itself — streaks, minutes, problems practiced — and once you've earned something, it never gets taken away. Rough quiz day? You can retake it when you're ready — your best real score is the one that counts.

A short, timed race through quick math facts — Mr. Cadabra offers you one at the start of a lesson. It's you against your own best score, and it's the fastest way to make the facts automatic.

Your real progress: units mastered, quiz scores, honest time, and which problems were tricky lately. Their view is read-only — nobody can change your work but you. And your voice is never recorded: what you say becomes text and the audio is deleted right away.