Fix only what you missed
Correcting a written answer no longer means rewriting it from scratch: fix just the parts you got wrong, edit your own answer in place, or clear a quick one-line check — and Study Units now go easier on long writing.
- Part-by-part marking: multi-part written questions are graded part by part, and a correction reopens only the parts you got wrong.
- Edit, don't rewrite: when your method was right, your answer comes back with the mistakes highlighted so you can fix them in place.
- Quick fixes: for bigger mistakes, Lex asks one short question about exactly what went wrong instead of making you rewrite everything.
- Spaced rewrites: after a quick fix, the full question comes back in a later Study Unit, so you recall it from memory instead of copying the feedback.
- Lighter Study Units: questions build from recognition to short recall to written answers, with at most two long written problems per unit.
- Key-point answers: answer long explanation questions as a list of key points and get marked on the ideas, not the prose.
- Compact answer boxes: short-recall questions ask for a word, a number, or one line.
