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Shape Detective
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Thinking sheet · Math and science
Heartbeat Lab
Count your heartbeats resting, after jumping and after cooling down. Graph them and see what changes.
- Grades
- 2–5
- Time
- about 20 minutes
- Topic
- Math and science
- Kids practice
- human body, measuring, graphing
What kids do
“Find your pulse and count. What makes your heart speed up?”
- Beats in 15 seconds
- Graph it
- Draw how your heart felt
- My heart sped up because…
- My guess for after running a race:
How to run it
- Find the pulse on the side of the neck or the wrist with two fingers.
- One person keeps time for the class.
- Let kids sit out the jumping if they need to.
Talk about it
- Why does your heart beat faster when you move?
- How fast does it slow down?
- Does an animal’s heart beat faster or slower?
Take it further
Multiply your 15-second count by 4 to get beats per minute.
Pairs well with
Free for home and classroom use. Print as many copies as you need.
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