Homework will be posted to Blackboard.
Homeworks have "L0" and "L1" problems. The former get you through the mechanics. The latter require more thinking. You are encouraged to solve "L1" problems individually, but if you don't get them after a few hours of concentrated effort, you are strongly recommended to find collaborators to work with (using Piazza).
You may only discuss L0 problems on Piazza or with your instructor.
L1 problems may be discussed with your classmates, preferably on Piazza.