This is Terry demonstrating the proces of plein air landscape painting. He's a very knowledgable teacher and generous with his information and experience.
I particularly liked his description of composition, using the idea of a star and supporting cast in a story.
Some other tid bits:
Put a brush stroke down and leave it don't mush it around.
Use big brushes to elimnate the fussy little stuff.
Start simple and build experience.
Do a thumbnail before you paint!