1. Lesson Starter What is the function of arteries?
What is the function of veins?
Which is the only artery which contains deoxygenated blood, why?
Why is it beneficial for capillaries to have very thin walls?

2. Learning Intention To find out the effect of exercise on heart rate
To learn about recovery time
To draw a graph

3. Resting Heart rate
Your resting heart rate (RHR) is the number of times your heart beats per minute while at complete rest. 

4. Effect of exercise on heart rate
Find your resting heart rate and note it down (RHR)
Star jumps for 2 minutes without stopping
Immediately take your pulse and note down (0 mins after exercise)
Take your pulse every minute and note down until your heart rate has returned to normal
Draw a graph to show your results
Pair up and add your partner’s recovery time to your graph

5. Why does the pulse rate increase with exercise?
Think..
Why does the pulse rate increase with exercise?

6. Recovery time
Recovery Heart Rate is your heart's ability to return to a normal rate after an activity within a specific amount of time. In general, a faster heart rate (HR) recovery (HR slowing down) from an activity is an indication of an improved fitness level.