This lesson was created in order to make measuring and converting millimeters and centimeters using a real world example. All of the measurements are actual sizes that the different spiders can actual grow to be. This lesson was also created to increase the buy in and interest of the kids by making it hands on and a very visual model of measurement.
By the end of this lesson the kids should feel comfortable with measuring in millimeters and centimeters. Students should begin to see the relationship between the two types of measurement units.