It hasn't been uploaded yet. According to official website, the intelligent platform of primary and secondary schools, the second volume of junior high school mathematics needs to be revised and edited, and the new textbook hasn't been uploaded yet, so it can't be found. The "National Smart Education Platform for Primary and Secondary Schools" is an "Application Plan for the Construction of National Smart Education Platform for Primary and Secondary Schools" researched and formulated by the Ministry of Education on the basis of summing up the operating experience of the "National Network Cloud Platform for Primary and Secondary Schools", and the original cloud platform was revised and upgraded to "National Smart Education Platform for Primary and Secondary Schools", which was put into trial operation on March 1 2022.