You can also make your own courseware separately and share resources. You can also collect courseware of national teaching materials on the Internet. In order to get better courseware, we can buy some ready-made courseware online to share resources, which has better effect and is more appreciated by students. First, turn on the smart projector, search DSJ with Dangbei Market, download and install TV House 3.0, and then turn on TV House 3.0. Find cetv4 China Education Channel 4 in the Central Channel and watch the same class live broadcast on CETV4 Channel for free. That's all about how CETV4 China Education TV Station watches on the projector. Of course, users can also download the Chang 'an Academy APP on their mobile phones and project the screen through their mobile phones.