Explain it back — so you know you actually get it.
Following an explanation feels like understanding. Saying it out loud is where you find out. Teach-back is the two minutes between those two things.
"That makes sense" is not the same as knowing it.
When someone walks you through a solution, every step looks obvious as it appears. Nothing is confusing, so your brain files the whole thing under "understood." Then you hit a blank page on the quiz and can't produce step two.
Recognising a step and generating it are different skills. Watching only trains the first one. The fastest way to test the second is to close the explanation and try to say it yourself.
A pill after the reply — not a mode you have to pick.
There are three modes in LemonSugar Ai: Guide me, Explain and Answer. Teach back isn't one of them, and you never have to set it up in advance.
It appears as a small pill under a reply once there's something to explain back: Teach back — you explain, Sugar grades you. Tap it if you want the check, skip it if the step was obvious. Nothing is blocked either way.
You explain — Sugar grades you.
Three sentences, your own words.
- 01
Say what the problem is asking
Not the numbers — the job. "I have to find where the two lines cross." If you can't say this part, that's the gap, and it's a good one to find early.
- 02
Say why the first move works
Anyone can list steps. The one that matters is why you're allowed to do that step here and not somewhere else.
- 03
Don't copy the phrasing back
Reusing the exact wording from the explanation is how you fool yourself. Your own clumsy version is worth more than a clean quote.
Sugar grades the explanation and points at the missing piece rather than the awkward wording. A hole you leave open gets saved by name and comes back tomorrow; explain it properly later and it closes.
How does teach-back help with homework?
Teach-back makes you explain the idea in your own words right after you've been shown it, which turns a passive read-through into active recall. Because you have to produce the reasoning instead of recognising it, gaps surface immediately — while you still have the problem in front of you — rather than on the test. In LemonSugar Ai it's a pill after a reply: you explain, Sugar grades your explanation, anything you left out is saved in plain language and returns in practice on a later day. It's the check that runs before the night ends with You're done for today.
Try it on the next thing you half-understand.
Get the explanation, then say it back. Two minutes decides whether it survives to Friday.