Are there any required text for this class or suggestions?
At the end of each lesson plan (or most lesson plans) they talk about extensions. Sometimes, these are readings from a book called Blown To Bits which is free to access online. I know Mobile CSP’s curriculum pulls from that book as well a bit.
Since it is such a new course, not many books have been written for the course yet but I am sure there are plenty of publishers who are excited to be selling them soon! I use Computer Science Illuminated to read more for my own learning, but it might be something you want to look at too.