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Curriculum
Overview: |
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Presentation for Veterinarians |
Three follow-up lessons for Teachers |
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Human Heart Function |
Heart Research |
Heart
Function Inquiry |
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Objectives |
Students will:
1. Be able to describe how a heart functions.
2. Explain what goes wrong in heart attacks and congestive heart
failure.
3. Obtain and perform math operations on heart rate.
4. Distinguish between a normal and PDA-affected heart sound.
5. Understand the circulatory flow differences between a normal and PDA
heart.
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The students will:
1. In humans, identify the sounds that correlate with systole and
diastole.
2. Understand the effects of exercise on heart rate and the duration of
contraction and rest phases of the heart beat.
3. Measure blood pressure at resting and after exercise, and interpret
the results. |
Students will:
1. Explain three common types of heart disease and their causes.
2. List the steps a researcher often uses to get a grant to
study heart disease.
3. Explain what an oxygen electrode is for.
4. Explain what a heart-lung machine has to accomplish.
5. Explain what angioplasty is.
6. Explain what cholesterol and LDL have to do with heart
disease and what “statins” are.
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Students will:
1. Generate testable hypotheses and develop the rationale for the
hypotheses.
2. Design an experiment using water fleas (Daphnia) and monitoring the
heart function.
3. Perform correct calculations and measure any substances added to
culture, expressed in mg/L.
4. Write a short report of the experiment, its results, and its
interpretation. |
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Major Content |
PowerPoint presentation about
the circulatory system and heart disease (heart valve problems, heart
attacks and congestive heart failure, patent ductus arteriosus) |
Heart sounds, blood pressure.
Effects of exercise on heart function. |
Milestones in heart research (oxygen monitoring, heart-lung machine,
blood cholesterol & lipids, angioplasty, etc.)
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Using a Daphnia test system,
students generate their own hypotheses, and design, conduct, and report
their experiment on heart function. |
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Props,
special resources/ supporting material |
1. Preserved heart (with
and/or without heartworms)
2. Photos of heart infected with heartworms
3. Many stethoscopes
4. Chest radiographs (+/- heart disease) |
1. Stethoscopes
2. Stopwatch
3. Human heart function worksheet |
1. Heart research Power Point
2. Tutorial document on cholesterol transport and heart disease
3. Heart research worksheet
4. Internet resources
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1. Cultures of Daphnia
2. Science lab facility (microscope, thermometers, milligram lab. scale)
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Activities/
demos |
Students monitor heart rate,
before exercise and at various times thereafter.
Students also monitor heart sounds. |
Test effects of exercise on
human systolic and diastolic blood pressure. Compare individual results. |
Students write individual
essays, give group presentations for class discussion. |
Inquiry learning experiments
on Daphnia heart. |
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Student
assessment |
Pre-test
Post-test |
Grade the worksheet |
Grade essays and presentations |
Grade the research
presentation and worksheet |
