1. When you want to download electronic textbooks for primary and secondary schools, open Baidu on your computer and search for "China people and the Ministry of Education".

2. Open the search results page, and click "Portal of the Ministry of Education of China Municipal People's Government".

3. Open the homepage of the website, click on "Search box", and then search for "Notice on Publishing Links to National Curriculum Electronic Textbooks for Primary and Secondary Schools".

4. Open the search results page and click the title "Notice on Publishing Electronic Links of National Curriculum Textbooks for Primary and Secondary Schools".

5. Open the notice to read, and then click "Electronic link of national curriculum textbooks for primary and secondary schools".

6. After opening the form document, find the line of primary school mathematics in People's Education Edition, and then click "Link".

7. Open the People's Education Edition electronic textbook interface, slide down, and then click "Primary School Mathematics Textbook".

8. Open the interface of the primary school mathematics textbook, find the second volume of the second grade mathematics textbook, and then click "Download".

9. Open the textbook preview interface and click the "Download" icon to download the electronic textbook to the computer.