Agreeing on the list was the hard part; the rest of the experiment is less difficult.

     First, you should know how to read electric meters. Electric meters measure the number of kilowatt-hours (KWH) consumed. Most have four or five dials, each numbered from 0 to 9. To read the dials, write down the number the pointer has just passed. Be careful to note whether the dial reads clockwise or counterclockwise.

     Look at the examples on page 18 and make sure you understand how the readings were made. (Four-dial meters do not measure individual KWH units, so you’ll have to add a 0 as the last digit in your reading.)