What

1
Whats that Beat?
2
Heart Rate Resting Rate

• Find your pulse.
• Count your heart beats while I time you.
• Write it down on your table

  Resting Active
Number of Heart Beats    
Time Interval (s) 15 s
3
Jumping Jacks

• Count each Jumping Jack while I time you!
• Fill in the table on the worksheet

  Trial 1 Trial 2
Number Jumping Jacks    
Time Interval 15 s 15 s
4
Active Heart Rate

• Youll calculate your heart rate 3 more times
  after 3 different sets of jumping jacks!

  Active 1 Active 2 Active 3
Number Heart Beats      
Time Interval 15 sec. 15 sec. 15 sec.
5
You Tell Me!

• Whats a ratio?
• Whats a rate?
• Its what youve just calculated.
• A ratio with units!
• Some examples
• Miles per hour (mph)
• Words per minute (wpm)
• Other examples?

6
How is it written?

• You write a rate like a fraction

7
Math Challenge

• Jack and Jill drove up the hill at 25 miles per
  hour. How many miles did they travel in 1 hr 30
  min?
• How many miles did they drive in 3hr 12 min?
• How much time did it take them to travel 5 miles?

8
Math Challenge

• Jack did 10 jumping jacks in 15 seconds. At this
  same rate, how many jumping jacks could Jack do
  in 1 minute?
• How long would it take him to do 100 jumping
  jacks at this same rate?
• How many jumping jacks did Jack do per second?