Use a computer browser, go to Baidu website, search for "National Intelligent Education Platform for Primary and Secondary Schools", enter the "National Intelligent Education Platform for Primary and Secondary Schools", click on the "Course Teaching" column, and select the time period, grade, subject, version, album number and corresponding course catalogue to watch.

Online education for primary and secondary school students in China should have an official live website or client, which can be opened or downloaded for viewing.

After the upgrade, the national smart education platform for primary and secondary schools has become the national smart education platform for primary and secondary schools. Therefore, if you want to watch free online classes on the national platform for wisdom education in primary and secondary schools, you only need to enter the national platform for wisdom education in primary and secondary schools.