A recording sheet for a breathing rate test. Students count breaths for 30 seconds and double the count, first at rest, then after walking for 1 minute, after 1 minute of jumping jacks and after resting 2 minutes, with two trials and an average for each. Page 2 has a bar graph frame scaled 0 to 50 by fives and three analysis questions. The key lists sample averages of 16, 22, 36 and 18.
“Measure a rate, record it in a table and show the averages on a bar graph.”
Part 1 holds the two trials and the average, and item 2 is the four-bar graph.
“Explain why breathing rate changes with activity and name the system that works harder alongside it.”
Questions 3 to 5 on page 2.
Four steps in a purple box, beside a photo of a student counting breaths, then a table with Trial 1, Trial 2 and Average columns for the four activities.
An empty graph titled Average Breathing Rate by Activity, with four labeled bars to draw and color on a scale of 0 to 50.
Three questions on why breathing speeds up during exercise, why it slows down again and which other body system works harder.
A sample table, the bar heights for the sample averages and model answers to questions 3 to 5.
Quiet counting
Run the at-rest count with the room silent so every count is clean.
Jumping jacks
Spread desks out or step into the hall for the jumping jacks. A student who prefers can march in place.
Check the doubling
Look at each student's first Trial 1 number before they go on. A missed doubling carries into the average and then into the graph.
Get started today
