The first one: the official account of WeChat has made a lot of resources in the official account of WeChat. Teachers themselves have to pay attention to many such numbers through various channels, but they all have the same problem, that is, if you want to get information for free, you must forward it to your circle of friends.
Therefore, I recommend an official WeChat account of the teaching network that does not need to be forwarded to the circle of friends. This number is a complete set of account books every time you share information. Courseware teaching plans are packaged and distributed, and you will not be allowed to forward them. Now, reply to the free information on the official WeChat account of the teaching network, and you can directly download courseware teaching plans such as Chinese, mathematics and English for free.
The second: the website of Teaching and Learning Network.
This is a professional website for preparing lessons. The information covers all subjects in different versions of junior high school and senior high school. In short, all the information you want can be found here. There are many websites like this, including subject websites and elite websites. But! There are not many websites that can be downloaded for free, and the teaching network is one! Courseware, lesson plans and test papers can be downloaded and used by friends for free. If you don't want to download or invite friends, you can still browse all the resources on the website.
Third: the first PPT courseware network
If you just want to download courseware conveniently and freely, and the requirements for courseware content are not too high, and you want beautiful PPT templates, then you can use the first PPT courseware network, where the courseware design is very good, and all the courseware is downloaded for free, even without logging in.