PHALIN THAKKAR · LEARNING MATERIAL

Review your mistakes

Find the first step that needs to change, then try again.

Foundation establishes the diagram, signs and calculation. Core practice combines ideas and conditions. Advanced extension adds parameters, stages, limiting cases or calculus. These are selected resources for JEE preparation, not a complete syllabus or an official difficulty classification.

Problem ID

Problem ID __________ Level ____________________

1. My first assumption or diagram

My response

2. What I wrote: the earliest incorrect step

My response

3. Type of mistake: direction, contact condition, friction regime, domain, boundary, algebra, calculus or interpretation

My response

4. Why it happened: what I believed or overlooked

My response

5. A check: a specific counterexample or limiting case

My response

6. My corrected reasoning

My response

7. Try again: a fresh attempt without the solution

My response

Two examples of useful checks

Physics: I used N = mg despite an upward pull. Checking N + Fy = mg exposes the missing vertical component.

Mathematics: I multiplied by x − 2 without checking its sign. Testing one value on each side of 2 reveals why the inequality needs separate intervals.

Responses are not saved. Print your completed reflection to keep a copy.