This unit uses the context of money (nickels and dimes) as a support to help students become more comfortable with the grouping of five and ten minutes on the analog clock. Students learn that a quarter of dollar is quite different than a quarter of an hour, which is only 15 minutes, and that the 60 minutes in an hour is broken up into 5-minute chunks on the analog clock. Emphasis is placed on unitizing the groups of fives and being able to read the clock to the nearest five minutes.