Bass Guitar class

I had a bass guitar class again yesterday, 31st of October, 2009.
I learned the 4th Chord progression this time last week. Certain types of music usually go by the patterns and the 4th is the most common pattern, especially the Jazz music usually goes by the 4th. Derek, my guitar tutor, told me that it'd help me get used to every sounds and learn all the notes on the guitar neck.
I couldn't practice it last whole week because I had math and chemistry tests as well as many assignments due on that week.
So yesterday, I practiced it with him and basically further developed the skills. He said we'll learn the 7th as well next time.