Mississippi Science HAP.10.5
The Standard
- HAP.10
- Students will investigate the structures and functions of the cardiovascular system, including the cause and effect of diseases and disorders.
Plan and conduct an investigation to test the effects of various stimuli on heart rate and/or blood pressure. Construct graphs to analyze data and communicate conclusions.
2026 Mississippi College- and Career-Readiness Standards for Science · Cardiovascular System
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students plan a fair test of how standing or light movement affects heart rate. They measure pulse the same way each time, graph their results, and use the data to explain what changed.
What Mastery Looks Like
- A student records pulse as beats per minute and labels both graph axes. They compare each condition with their resting rate and explain whether the data support their conclusion.
Common Misconceptions
- Students may treat a 30-second pulse count as beats per minute without doubling it. Some think heart rate and blood pressure are the same measurement, or assume one reading proves a lasting effect.
How to Assess It
- Give students these pulse rates: seated, 72; standing, 80; after marching, 104 beats per minute. Have them draw a bar graph and write one sentence about which condition produced the largest change from rest.
Lesson moves
Ways to Teach It
Pairs count 30-second pulses after seated rest, one minute standing, and one minute marching, with recovery between conditions; double counts and graph.
Ask, "Which condition changed heart rate most, and what numbers on your graph support that claim?"
Give groups cards with pulse counts and measurement times; have them calculate beats per minute and correct a mislabeled bar graph.
Show a sample smartwatch reading after a walk; ask students how they would check it with a manual pulse count.
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