lesson
Use measurements without diagnosing
1 · Learn
A pulse is the rhythmic expansion felt in an artery as the heart pumps. Heart rate can change with activity and recovery. A comparison needs a consistent counting interval and a clear description of when measurements were taken.
Read this invented dataset: before gentle activity 78 beats per minute; immediately after 104; after two minutes of rest 86. It shows a rise followed by a fall towards the initial value. It does not diagnose someone's health.
2 · Worked example
The increase from 78 to 104 is 26 beats per minute. I describe the pattern but do not claim all people will have these exact readings.
3 · Your turn
Has the final value returned exactly to the starting value? What is the difference?
Check your answer
No. 86 is 8 beats per minute above 78.
4 · Apply your learning
Plot the supplied data and explain one limit of using only one invented example.
Adult guidance and safety
Use supplied data by default. Any real activity must be suitable, voluntary and supervised; do not rank bodies, solicit health disclosures or interpret readings medically.
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Check a calculation · Year 5 onward
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