Concept error
The meaning of a definition, principle or formula is missing.
PARENT GUIDE · ERROR LOOPWhy the same mistake returns
Why the same mistake returns
even after making an error notebook.
Copying a clean solution is different from changing the cause of an error. Classification and delayed retesting are required for recurrence prevention.
GAON ACADEMYError-loop guide
Diagnosis → level-based teaching → error clinic → growth report
INSIGHT
The purpose of an error notebook is not documentation—it is preventing recurrence.
Immediately after re-solving or copying a solution, understanding may feel complete. But when numbers or conditions change, or time passes, the same cause often returns.
GAON classifies errors as concept, application, calculation or interpretation, repairs the smallest necessary concept and retests a changed problem within two weeks.
Application error
The concept is known but the student cannot choose when to use it.
Calculation error
Signs, units, operations or checking habits are unstable.
Interpretation error
Conditions, questions or sentence structure are misread.
PROCESS
GAON recurrence-prevention loop
Program stages and class placement may vary after the student diagnosis.
One-line cause
The student states or writes the reason for the mistake briefly.
Minimum repair
Review only the relevant concept and one or two core examples.
Immediate variation
Change numbers or conditions and apply immediately.
Two-week retest
Return after a delay and check the same type again.
WHAT WE TRACK
How error-management results are read
Recurrence rate
How many similar questions repeat the same cause?
Explanation change
Move from “I don’t know” to stating conditions and reasoning.
Checking habit
Does the student recheck units, signs and contextual reasonableness?
FAQ
Frequently asked questions
Should every wrong answer be written down?
No. Focus on recurring causes and important representative questions.
Is two weeks always required?
The exact interval may vary, but immediate review alone cannot test durable memory or recurrence.
Can English errors be managed similarly?
Yes. Vocabulary, grammar, passage interpretation and question understanding can be classified and checked with delayed recall.
GAON DIAGNOSIS
Before choosing a subject, identify where learning is getting stuck.
Select grade, subject, current concern and preferred consultation time. Your phone will open a pre-filled text message.