SACE Year 12 · South Australia · Opening Term 4, 2026
Find out which marks you lost. Not just how many.
An interactive textbook for SACE Year 12. Read the theory, answer the question, and find out exactly which marks you dropped and why — in about 3.5 seconds, at eleven o’clock at night, without booking anyone.
Five subjects, opening Term 4, 2026. There is a free tier that never needs a card. Joining the list costs nothing and we email you once.
Describe the role of each of mRNA, tRNA and rRNA in protein synthesis.
The problem
“3 out of 5” is a grade. It is not feedback.
A number tells you how you did. It does not tell you what to do on Saturday morning. Here, every answer comes back as a list: the marks that were going, the ones you got, and — in a sentence each — why the rest did not come.
Why it agrees with itself
The marking follows written rules, not a mood.
Every mark your subject can award is written down before you ever see it. “Names the structure or term.” “Shows the working, not just the answer.” When you hit submit, your answer is checked against the ones that apply — the same ones, in the same words, every single time.
Which matters more than it sounds. It means it cannot flatter you on Monday and fail you on Friday, and it means the thing you keep dropping has a name — so you can go and fix that one thing instead of “revising Biology”.
On your phone
Built for the phone that’s already in your hand.
Read a lesson on the bus. Answer a question at lunch. Have it marked before you get home.



It keeps count for you
The same mark, going missing, week after week.
Because every mark has a name, it can tell you which ones you keep losing — ranked, with the questions where each one went. That is a far more useful thing to know than your average: dropping the same two marks in every long answer is a habit, and a habit is fixable in an afternoon.
And it brings it back
Revision that arrives on the day you were about to forget.
Every lesson makes its own recall cards. The deck brings each one back just before the point you would have lost it, and stretches the gap every time you get it right — so the things you already know stop taking up your evenings.
Opening Term 4, 2026
Be there when it opens.
We are opening with 5 SACE Year 12 subjects and writing them properly rather than quickly. Tell us which one you need and we will write that one first.