The 2022 edition of exercises in primary school mathematics class can be seen on the education website. Education Network contains most electronic teaching materials on the market, including learning material templates and classroom refinement, which can be used on demand.

1. Open the browser in the computer and search the website of Education Network.

2. Search for the electronic version in the homepage of Education Network, and click Search.

3. Click the Classify button above the search results.

4. Find the electronic module of textbook category below.

5. Find the classroom refining course in the electronic textbook category and choose to download it. After the download is completed, you can open it and watch it.