1. Etymology of word "super" and therefore supernormal profit definition
2. Each student writes definition of "normal profit", brainstorm and write definition
3. PPP for definition of equilibrium https://mail.google.com/mail/?shva=1#inbox/1274d2a9af755d99
4. Discuss what equilibrium means for PC
5. Groups at WB:
6. Draw graphs with supernormal profit, check and mark each others using PPP as guide https://mail.google.com/mail/?shva=1#inbox/1274d2bcaf514c8f
7. Using PPP, chnage situation and draw new and mark and comment
8. Repeat until time is up
