
LESSON MATERIALS
THIRD GRADE
Cardiology
Pump It Up: Building a Heart Model!
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OBJECTIVE
By the end of this lesson, students will be able to:
Understand the role of a cardiologist in helping people care for their hearts.
Describe how the heart functions as a pump to circulate blood throughout the body.
Build and test a simple working model of a heart using everyday materials.
Make connections between science, healthcare careers, and healthy habits.
FUTURE READY
Cardiologists play a critical role in keeping communities healthy by diagnosing and treating heart conditions, one of the leading causes of illness in the world. Their work saves lives and helps people live longer, healthier lives. This lesson gives students an early introduction to one of the most important organs in the human body—and how science and healthcare careers work together to support it. By learning how the heart works, building a model pump, and thinking about healthy habits, students begin to see how their curiosity and compassion can grow into future careers in medicine, research, or even biomedical innovation.
LESSON DURATION
45 minutes