It is important that students personalize their Caliper Tool with their current height. The act of measuring themselves and group members is useful to reinforce the idea that they are working with actual heights of objects in the real world. It is another opportunity for them to think about the different variables they are measuring.  This also reinforces measuring skills for those less experienced.

This is particularly useful for Lessons such as Virtual Giraffe Challenge, You Are the Ruler, Shrink and Grow and Strike a Pose with Virtual Props.