I'll try to release an interesting topical problem each class. These help you keep pace with the mastery tasks.
PCP1: Write, compile, execute a C program to solve https://projecteuler.net/problem=25
PCP2: (little tougher) firstchecker
PCP3: findtheflag
PCP4: (IMPORTANT) Mastery A and B in one: Learn To See/C
PCP5: A Python Reverse
PCP6: Write a crackme for your fellow students and solve one student crackme.