GMAT TRAINER: FREE ERROR LOG
Guide: https://gmattrainer.com/resources/gmat-error-log

Copy the blank entry for each question you want to review.
Use this with any practice resource. Keep a source/question reference
rather than copying protected question text into a shared document.

BLANK ENTRY
Date:
Source and question ID:
Section and topic:
Result (incorrect / correct but guessed / correct but slow):
Time spent (optional):
What happened at the first wrong or slow step:
Cause (concept / setup or reasoning / execution / timing or decision):
One specific correction:
Revisit date:
Result on a fresh question testing the same idea:

WEEKLY REVIEW
The most common cause this week:
One correction I will practise next:
What improved on fresh questions:
What still needs work:

EXAMPLE NOTE (ILLUSTRATIVE)
Topic: successive percentage changes
Cause: setup
What happened: I used the original price as the base for both changes.
Correction: label the base for each percentage before calculating.
Revisit: try two fresh questions during my next review session.

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