How to teach BBK foreign language 9588?

I also want to know! The landlord's question is very good! BBK 9588 is very easy to use, but its practicability is greatly reduced because there is no corresponding synchronous teaching material courseware.

I found my son's sixth grade English, math and Chinese courseware in BBK official website, but the version is different, so it can't be synchronized with the textbook. I am eager to get expert advice on where to download the synchronous courseware of the textbooks adopted in Hunan, and I am also eager to organize BBK to develop more versions of the synchronous courseware. Thank you!