In this very simple exercise, you will measure the width and height of a photograph, then calculate its area. Then you will compare and discuss your results with the rest of the class.
Discuss the results of this activity with your classmates. If there are discrepancies in the results, do you notice any patterns? Can you account for the discrepancies? What could be done so that these discrepancies aren't repeated in future labs?
Summarize your conclusions in your lab notebook. Try to use proper measurement terminology.
Staple your paper ruler to the lab notebook page. Enter the lab in your lab book index, put a book mark at the appropriate page, and turn it in.