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How about the first volume of the fifth grade mathematics teaching video?

The first volume of the fifth-grade mathematics teaching video can be downloaded from Baidu's network disk.

1. Click the sharing link and paste it.

2. Download and open the blocked network disk, and log in.

2. After opening the blocked network disk, the link will appear in Tian Hui. Click Download.

3. Complete the download and installation instructions and save them in my file.