Biology lesson plan: Matter and energy flow in ecosystems
Topic: Use mathematical representations for cycling of matter and flow of energy among organisms in an ecosystem (HS-LS2-4). Adjust the settings, then copy the prompt.
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Planning notes for this lesson
Prerequisite skills to check: food webs and energy transfer in middle school (MS-LS2-3); producers, consumers and decomposers; conservation of matter and energy at a basic level (MS-PS3-D / MS-LS1-C).
Warm-up idea: Show a simple numbers story: 10,000 kg of grass supports far less biomass of rabbits and even less of foxes, and ask why the 'pyramid' gets smaller at each step.
Exit ticket idea: Students use a proportional model of biomass or energy at two or more trophic levels to support a claim that matter cycles and energy flows while being conserved (staying inside the HS-LS2-4 assessment boundary of proportional reasoning).
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Quiz on the same standard
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