Grade yourself

Wrong answer?
Let's find out why

Paste the question and the answer you gave. We'll mark it up the way a good teacher would circle the slip, and explain the reasoning that gets you to the right one.

Submit your question and answer

or press ⌘/Ctrl + Enter

How it works

Three steps to the fix

  1. 01

    Paste it in

    Drop in the question exactly as it was asked, and the answer you actually gave no need to tidy it up.

  2. 02

    Get graded

    It's read back the way a teacher reads a test: what you were reaching for, and the exact step where it slipped.

  3. 03

    Learn the fix

    Walk away with the corrected reasoning and a way to remember it not just the right answer.

About

Being wrong is data

Most tools stop at "correct" or "incorrect." That's the least useful part of a mistake. The interesting part is why a wrong answer felt right in the moment that's usually where the actual misconception is hiding.

Explain My Mistake is a small, single-page tool built around that idea: paste what you were asked and what you answered, and get a plain-language breakdown of the gap between them.