A mistake matters when the next attempt is right

Traditional mistake notebooks require copying, cutting, and reorganizing questions. That work takes time but does not guarantee more practice on the weakest concepts.

Qinghe reduces the mechanical work: upload a completed paper, identify what needs more practice, and generate a focused exercise.

What you can do

Upload homework, unit tests, or quizzes.
Organize incorrect answers into a personal mistake notebook.
Generate practice by grade, subject, question count, and difficulty.
Export a student worksheet and a parent answer version.
Review practice progress without writing new questions by hand.

Who it is for

Students and parents who want less manual organization and more focused follow-up practice.

Current status

The main upload, organization, and practice-generation flow is complete. Recognition and usability are still being improved.