> ## Documentation Index
> Fetch the complete documentation index at: https://help.dingtalk.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Subject teachers: Online lesson plans ease teaching workload

> Teacher workload case study: three teachers used DingTalk's Teaching Resource Library to collaborate on lesson plans, cutting semester prep time by half while sharing best practices—turning solo preparation into efficient team collaboration.

**School name: Wangding Yuhua Experimental Primary School**

**School size: Over 70 teachers and more than 900 students**

**Teacher name: Wu Shan**

**Frequently used features: Class group, Parent-Teacher Notebook, Teaching Resource Library**

Ms. Wu Shan is a sixth-grade math teacher at Wangding Yuhua Experimental Primary School, responsible for teaching math to two classes. Over this winter break, she worked with two other math teachers in the same grade to efficiently prepare lesson plans for the new semester through the Teaching Resource Library. When school resumes, Ms. Wu plans to recommend this effective method to all teachers at the school to help ease their workload.

**Before:** Each teacher prepared the content for every teaching unit individually, which took more than ten days to complete.

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**Now:** Three teachers divide the work and collaborate, completing the preparation in only half the previous time. They also learn from each other's best practices during the sharing process.

## Use the Teaching Resource Library to collaboratively prepare lesson plans

In the Teaching Resource Library, DingTalk has pre-created the "Lesson Plan Center" for teachers. Teachers can click the "+" next to an entry, based on the subject and grade they are responsible for, to start creating lesson plans, after-class exercises, and other teaching materials for each unit.

Teachers can also quickly create lesson plans by **uploading local files**.

After preparing the teaching materials, click "Share" in the upper-right corner of the knowledge page to send a knowledge card to other teachers. This kind of collaborative division of labor not only eases the workload of subject teachers and avoids duplicate work, but also enables quick sharing of best practices and improves overall teaching quality, benefiting both students and teachers.