This document provides instructions for students to measure and record their pulse rates while standing, walking, and jogging. Students are asked to take their pulse for 15 seconds and multiply by 4 to determine their pulse rate in each activity. They then record the results in a data table and construct a graph. The document includes questions for students to analyze their results, such as whether their pulse rate is normal and how exercise benefits heart health. Students are also asked to explain the relationship between breathing and pulse rate.

1. MENTARI INTERCULTURAL SCHOOL
IB MIDDLE YEARS PROGRAM
Assessment Objectives:
Describe one’s pulse rate when walking and running.
Construct a data table and graphs.
Interpret data table and graphs.
Criterion C: Processing and Evaluating
STOPWATCH
I. Procedures
1. Stand in a place where you feel comfortable.
2. Hold your hand in front of you and locate the pulse in your left wrist using your right
index and middle fingers.
3. Using a stopwatch, count the pulsating beats for 15 seconds.
4. Multiply the pulses you counted in 15 seconds by 4 to get the pulse rate.
5. Jog in place for 2 minutes.
6. Afterwards, repeat the instructions in 2-4 and record it in the data table.
7. Walk around for 3 minutes. Then, repeat the instructions in numbers 2-4 and record it
in the data table.
8. Check your pulse rate in the Normal Pulse Rate chart below. Answer the questions that
follow.
II. Data Table
TITLE:__________________________________________
TRIAL 1 Standing Walking Jogging
Pulse Rate
TRIAL 2 Standing Walking Jogging
Pulse Rate
TRIAL 3 Standing Walking Jogging
Pulse Rate
AVERAGE Pulse
Rate
Student Name: CN 1st
Term SY 2018 - 2019
Grade Level: 8 Date: Parent’s Signature
Section: Teacher: Armand Anthony L. Galicia
Formative Assessment - Laboratory Activity Unit/Topic: Pulse Rate

2. Normal Pulse Rate Chart
Age Pulse Rate
Babies up to age 1 100-160
Children age 1 to 10 60-140
Children over 10 and adults 60-100
Fit athletes 40-60
Target Heart Rate: You gain the most benefits and lessen the risks when you exercise in
your target heart rate zone. Usually this is when you exercise heart rate (pulse) is 60
percent to 80 percent of your maximum heart rate.
Maximum Heart Rate: The maximum heart rate is the highest pulse rate you can get. To
calculate your predicted maximum heart rate, use the formula: 220 – Your Age = Predicted
Maximum Heart Rate.
III. Graph [Level 5-6]
Construct a graph for your data table.
IV. Guide Questions
1. Do you have a normal heart rate? Why?
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3. 2. If you found out that you have an abnormal pulse rate, what is the best thing that you
must do?
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3. What is the possible cause of having an abnormal pulse rate? [2 points]
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4. When does your pulse rate increase and when does it decrease?
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5. Why is exercise beneficial to you?
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6. How often do you exercise?
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7. Aside from exercise, how do you keep your heart healthy?
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8. While you are doing the exercise, what do you notice in your breathing?
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9. Why is it hard for you to breathe when you run and do heavy activities?
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10.Is breathing relevant to the pulse rate? Justify your answer.
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REFERENCE:
Rabago, L. M. (2014). Science and Technology 9. Quezon City:VibalPublishingHouse, Inc.
Santos, G. N., Abistado, J. M., Valdoz, M. P., Aquino, M. D., & Bascara, M. A. (2014). RBSScience and Technology Series Science Links 9
Teacher's Resource Manual. Manila:REXBookstore, Inc.