How we check materials

Every material is signed: who wrote it, which version it is and when it was updated. We show “Reviewed” with a name and date only after a real review by a teacher.

Where we are now

• Sheets are based on school notebooks and the federal curriculum.
• Materials without a review say “Not yet checked by a reviewer”.
• Sheets written without notebook notes are not published until a teacher checks them.
• Every correction is recorded in the material’s change history.