How does your heart rate

There is a nation wide initiative to teach children to get more active.  Today we are going to explore different types of exercises and find the heart rate associated with each.  The idea is that tomorrow the students can graph their data and turn it in for a test grade.  The essential knowledge today is being able to find their heart rate.  I found this video online that explains it well.

How to Find a Resting Heart Rate -- powered by ehow

The lab documentation can be found here.  The startup for today is "how do you find your heart rate?"