HugeMathBrain for teachers

HugeMathBrain gives teachers a free, no-account toolkit for teaching mathematical reasoning — competition and Olympiad style — to every grade.

What you get

• 144 original puzzles (12 per grade, including IQ-test and chart/graph puzzles) with answers always shuffled.
• Read-aloud Alice (an AI voice): every exercise, its answer choices and full explanation can be spoken aloud — great for early readers and ELL students.
• Print or Kindle books of the whole bank, with a TOC, word index and Terms of Service page (see the admin area).
• Mini Olympiad timed mode with contest scoring, per grade.
• No accounts at all — nobody signs up, nothing is collected about your students, and there is no login screen between a child and a problem.

Questions teachers ask

Do students need an account?

No. There is no registration and no sign-in. Open the site, pick a grade, start solving.

Is any data collected about students?

No. Nothing about a visitor is stored — not on the server, and not on the device either: progress lasts only while the page is open. There are no cookies, no ads and no trackers.

Is it really free?

Yes — every puzzle, every solution and every printable PDF, with no paywall and no watermark.

Can I print the quizzes for my class?

Yes. The downloads page has a printable PDF per grade plus a complete bundle, each with the answer key on the last page.