Personally, I think the basic knowledge of Xueba notes is very good every day. A small knowledge book covers a lot, which is quite suitable for improving the workbook while supplementing the foundation.
If the teaching assistant recommends it, you can point it out, scribble a book and draw the key points (under the topic that must be brushed in junior high school)
As for the exercise book, I have been using the compulsory examination questions unique to Guangdong. The compulsory questions in junior high school also bring a small notebook of knowledge points, and the answers are also analyzed, which is great.
What comes to mind is that the second day of junior high school should be prepared in advance (preferably in winter vacation). Don't ask, just ask.