Report an error

If something here is wrong, we would rather know. A revision site that cannot be corrected stays wrong for as long as it is up.

Write to [email protected] with the address of the page and what you think is wrong with it. A sentence is plenty. If you are quoting a specification or a mark scheme, saying which board and which paper makes it much faster to check.

What happens then

Every report is checked against the source rather than taken on trust, in both directions: we have had reports that turned out to be right and reports that turned out to be a board difference rather than an error, and both are worth having. If a page is wrong it is fixed and rebuilt. If it is right, you get an explanation of why, which is usually the more interesting reply.

Things worth reporting that are not errors

A sentence that is technically true and still misleading. A diagram that does not read on a phone. A term used before it is defined. Wording that matches no board's mark scheme. Those are harder for us to find than factual mistakes, because everything here was written by somebody who already knew the answer.