Texas TEKS 5.5.D

Science5th GradeRecurring themes and concepts

The Standard

examine and model the parts of a system and their interdependence in the function of the system

Texas Essential Knowledge and Skills for Science

Teacher's field guide

What Students Need to Do: Students identify the parts within a system and explain the job of each part. They create models showing how the parts interact and predict how changing one part affects the whole system.
What Mastery Looks Like: A student can label a system model with parts, jobs, and connections. The student can use the model to explain why the system works or what happens when a part fails.
Common Misconceptions: Students may list parts without showing how they affect one another. They may think systems must be machines, or that removing one part will not change the system's function.
How to Assess It: Exit ticket: Draw a battery-powered flashlight system and label the battery, wires, switch, and bulb. Explain what happens if the switch is removed.

Lesson moves

Give pairs a battery, bulb, switch, and wires to build a circuit, then sketch how each part helps the bulb light.
Ask students to write: Which part of our classroom door system could fail, and how would that change the whole system?
Play System Match with cards showing parts, jobs, and effects of removal from a bicycle, plant, and simple circuit.
Have students map the school lunch line, then predict how a broken register or missing tray station affects service.

Free download

A ready-to-print activity worksheet aligned to 5.5.D, with an answer key for the teacher on its own page. No account needed.

PDF, US Letter, prints cleanly in black and white.

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