Two wrong answers can need opposite homework. One is a slip: the child was sure, worked quickly, and would catch it with a check. The other is a gap: they did not know the method, guessed, or left it blank.
If every wrong answer becomes “revise the topic,” you will over-teach slips and under-teach gaps — or the reverse.
Mark with a simple confidence flag
When you mark together, ask for each wrong question:
- Sure but wrong — they believed the answer; method felt known
- Unsure / don’t know — guessed, half-remembered, or abandoned
You do not need fancy software for this. A pencil note in the margin is enough. The report then stops treating all red marks as identical.
Different mistakes, different fixes
| Mistake type | What usually helps | What usually wastes time |
|---|---|---|
| Sure but wrong | Check routines, slower stem reading, short timed accuracy drills | Another chapter of brand-new content |
| Don’t know | Teach the method, then a short mixed set on that topic | Only saying “read the question more carefully” |
| Ran out of time | Triage practice and timed sections | Untimed marathon papers with no clock |
A weekly habit that sticks
- Sit one timed paper or section.
- Mark correct / wrong / skipped.
- Tag wrong answers as sure-but-wrong or don’t-know.
- Count which bucket is larger.
- Choose tomorrow’s 15-minute practice from that bucket only.
Parents often feel relief here: the plan becomes obvious instead of “do more of everything.”
Frequently asked questions
What if my child says “sure” about everything?
Compare their confidence with the mark scheme for one paper. If “sure” answers are often wrong, build a check step before calling anything finished.
Are careless mistakes just laziness?
Usually not. They are often speed, attention, or missing a check habit under pressure. Treat them as a skill to train.
Should we still revise topics with lots of slips?
Only if slips cluster on the same method. A single arithmetic slip in fractions is not the same as a broken fractions method across five questions.