Indiana Science HS-AP1-5

ScienceGrades 9–12Levels of Organization in the Human Body

The Standard

Compare and contrast the major organ systems and describe their basic functional importance.

Indiana Academic Standards for Science (2023) · Levels of Organization in the Human Body

Teacher's field guide

What Students Need to Do: Students identify major organ systems, name key organs, and explain what each system does. They compare the systems' jobs and explain how two systems work together, such as breathing and blood flow during exercise.
What Mastery Looks Like: A student can match the heart, lungs, stomach, brain, kidneys, bones, and muscles to their systems and explain each system's job. They can explain that lungs move oxygen into blood while the heart pumps blood to working muscles.
Common Misconceptions: Students may put the lungs and heart in one system because both sit in the chest. They may think the stomach absorbs most nutrients or that organ systems work alone.
How to Assess It: On an exit ticket, ask: “Compare the respiratory and circulatory systems. Name one organ and one job for each, then explain how both help you climb stairs.”

Lesson moves

Give pairs a body outline and organ cards; have them place each organ, label its system, and write the system's job.
Ask students to write: How do the respiratory and circulatory systems have different jobs, and why does running depend on both?
Read clues such as “filters blood” and “sends signals”; teams race to hold up a system card and name one organ.
Show a sports physical form and have students name the systems checked by heart rate, breathing, reflexes, and joint movement.

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