A cautionary note about the "break it all down into little pieces" approach: for some of us, it's easy to get caught up in making a list of all of those little pieces, organizing it, and spending so much time deciding on the right approach that very little actual work ever gets done! Probably you already know if this is an issue for you... Sometimes it's better to just figure out what a few of the little pieces are and get started, rather than attempting to decompose the whole project.
Currently I've got in OF focusing on Chapter 7 of my Math textbook, focusing on 7.1, 7.2, 7.3, 7.4, & 7.5.
Each 7.X has read and an assignment...so i'll read a bit, then tackle a bit. I won't create too many actions, in the end the only thing that matter is what got done and not what or how many actions were created....though obviously still important.