1. What’s that Beat?

2. Heart Rate: Resting Rate Find your pulse. Count your heart beats while I time you. Write it down on your table: RestingActive… 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 1Trial 2 Number Jumping Jacks Time Interval15 s

4. Active Heart Rate You’ll calculate your heart rate 3 more times after 3 different sets of jumping jacks! Active 1Active 2Active 3 Number Heart Beats Time Interval15 sec.

5. You Tell Me! What’s a ratio? What’s a rate? –It’s what you’ve 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?