Labs 6.7.2 and 6.7.3

You will need Takeshi's assistance in doing Labs 6.7.2 and 6.7.3, so we will do it in groups. You must come at one of the following times:

1:00 pm, Wed, Feb 6
7:00 pm, Wed, Feb 6
10:00 am, Thu, Feb 7
11:00 am, Thu, Feb 7