Revision methods
Keep a maths error log that leads to better practice
Record the first incorrect step, its cause and a new problem that checks the correction. Avoid copying whole solutions without diagnosing them.
Find where the solution changed direction
Compare your work line by line with a reliable solution. The first wrong step matters more than the last wrong number. Was the method inappropriate, a sign lost, a condition ignored or a calculation mistaken? If you cannot locate the error, ask someone to review your reasoning rather than only showing the final answer.
Use four short fields
Write the problem reference, the first error, the corrected rule and a follow-up question. Keep entries brief enough to use. Separate conceptual gaps from slips made under time pressure, because they may require different practice. A conceptual gap might need another explanation; a recurring copied number might need a checking habit.
Worked example
For 3(x − 2) = 12, a student writes 3x − 2 = 12. The first error is distributing 3 to x but not to −2. The corrected expansion is 3x − 6 = 12, giving x = 6. Check by substitution: 3(6 − 2) = 12. A follow-up such as 4(y − 3) = 20 checks whether the same distribution issue remains; its solution is y = 8.
Close an entry with evidence
Return later and solve a fresh example without copying the correction. If the error recurs, keep the entry active and revisit the explanation. If it does not, move on while retaining the record for future review. Do not label yourself careless as a substitute for identifying the step you can change. Use your course’s accepted notation and methods when preparing for assessment.
About this guide
This is an original practical workflow with illustrative examples, not a claim of a tested intervention or a guaranteed result. Follow your course materials and official assessment instructions.