The upcoming sections are focused on instructional content. The lessons vary in length of time so there is flexibility in how the teacher decides to incorporate them in relationship to three ARC challenge sprints.
One option is to have complete instructional days where you stack the sections together to fill a class period. Once the instructional sections are completed, you can flip back to the sprints.
Another option is to use part of the class for the instructional sections and use remaining class time for sprint work.
Finally, you can blend the two options and have some days as all instructional and other days as part instruction, part sprint work.