⚙️ Function Machine

Drop numbers in the machine and crack the hidden rule — what comes out?

Playing here doesn't save progress. Open it in TernQuest to keep stars and coins, or make a free account.

What does Function Machine teach?

Function Machine is a math game for 2nd grade – 5th grade that practises algebraic thinking. Like every TernQuest game it is tied to a skill on the curriculum map (California Common Core, PK–5), and Pip the tern gives hints, never answers.

Is it free?

Yes. Function Machine is in the free tier, playable in the browser with no ads and no signup. A free account (one child) saves progress and stars.