About Fold & Find

Fold & Find offers hands-on math activities for upper-primary and middle-school learners, and the parents and teachers who support them. Four courses explore cube nets, cuboid surface area, volume with unit cubes, and cube cross sections. All are available in Simplified Chinese, Traditional Chinese and English.

Content & use

The code, writing, exercises and diagrams in this lesson were independently created. The learning flow draws on common educational patterns; no Tongjiang courseware code or noncommercial assets were copied. You may print the worksheet for home and classroom teaching. This site is not an assessment or diagnostic service.

Contact & corrections

This is a public beta. A public contact channel is not yet available. If you find a math or usability issue, keep a note of the course, question number, language and browser. Operator details and a corrections email will be added before full operation and any advertising application.