In my opinion, this teacher is telling everyone what art really is, and how you should go about creating your art. This teacher is telling you what your plan should be.
Summary:
1. Get a sketchbook - This rule is kind of what you need for rule 2.
2. Draw. Every. Day. - This is important for improvement and just being an artist. You need to draw every day or else you could be terribly afflicted by not drawing every day.
No idea is bad, except the bad ones.