I've divided Lesson 3 into 2 lessons, both should be fairly easy. The goal for this lesson is to teach you about blending settings, and if you haven't realised how powerful they are I hope you will now.
Part A wasn't meant to be in from the first time, but I throwed it in there aswell.
Homework:
Follow the lesson above and post your result in .PNG.
If anything is unclear or so, let me know.