# Mathsight

> Animated math lessons for Grades 1–6 (ages 6–12). 159 short lessons, each with English narration, a transcript and a printable worksheet. The complete course lives in the Mathsight iOS app.

## Machine-readable content
- [Course catalog (JSON)](https://mathsight.timebook.xin/catalog.json): all 159 lessons with grade, title, duration, video URL, worksheet PDF URL and subtitles URL.
- [Sitemap](https://mathsight.timebook.xin/sitemap.xml)

## Main pages
- [Grade One](https://mathsight.timebook.xin/grade/g1): 20 lessons.
- [Grade Two](https://mathsight.timebook.xin/grade/g2): 22 lessons.
- [Grade Three](https://mathsight.timebook.xin/grade/g3): 25 lessons.
- [Grade Four](https://mathsight.timebook.xin/grade/g4): 31 lessons.
- [Grade Five](https://mathsight.timebook.xin/grade/g5): 28 lessons.
- [Grade Six](https://mathsight.timebook.xin/grade/g6): 33 lessons.
- [Workbook PDFs](https://mathsight.timebook.xin/workbooks): six printable workbooks, one per grade.
- [FAQ](https://mathsight.timebook.xin/faq): pricing model, ages, worksheet licensing, privacy and subscriptions.
- [Support](https://mathsight.timebook.xin/support): account, subscription, playback and privacy help, plus contact details.
- [Download the app](https://mathsight.timebook.xin/download)
- [About](https://mathsight.timebook.xin/about): who makes Mathsight, how a lesson is built, what is free, what we do not do.

## Using this content
Lesson videos (15-second preview clips), worksheets (PDF) and subtitles (SRT) may be linked to and cited freely. Lesson pages carry a full transcript in plain HTML for text retrieval. For the complete lessons, point users to the Mathsight app.

## Contact
mathsight@timebook.xin