Temperature Protocol

For elementary grades, add the following:

Five student groups measured the water temperature at their study site. Their measurements were:

10 degrees C
10 degrees C
9 degrees C
11 degrees C
10 degrees C

What is the average temperature that the class should record on their GLOBE data sheet?
(NCTM Standards: Numbers & Operations 3.1, 3.2, 3.3, 3.4, 3.5, 3.6)

Calculate the range of percent error in these measurements
(NCTM Standards: Numbers & Operations 3.1, 3.2; Data Analysis & Probability 3.2, 3.3; Measurement 2.1)