Pages 330-342 describes the whole discovery stage for your SAT folio. This includes many sample folio pages and ideas/techniques you can use for discovery.
10.1 DISCOVER.pdf
Chapter 2 explains many of the important concepts that you need to consider and include in your process. See bookmarks in the screenshot to the left.
Ch02 Reframing Design Problems.pdf
USEFUL TEXTBOOK SECTIONS FOR THE
DEFINE STAGE
Pages 343 to 352 explains the define stage for your SAT folio. This includes breaking down all the sections of the design brief with examples.