NGSS HS-LS2-8

ScienceGrades 9–12Ecosystems: Interactions, Energy, and Dynamics

The Standard

Evaluate the evidence for the role of group behavior on individual and species' chances to survive and reproduce.

Next Generation Science Standards

Teacher's field guide

What Students Need to Do: Students identify whether an animal action is individual or coordinated with a group. They examine observations or data, then argue how the behavior affects survival or reproduction.
What Mastery Looks Like: Students correctly separate coordinated group actions from individual actions. They use specific data to explain how a behavior affects survival or reproductive success, while noting limits in the evidence.
Common Misconceptions: Students may label any animals gathered in one place as group behavior, even when they are acting independently. They may assume group living always helps, ignoring disease, competition, or increased visibility to predators.
How to Assess It: Give students a short data table comparing predator attacks on schooling and solitary fish. Ask them to make a claim and cite two data points.

Lesson moves

Scatter and cluster paper prey on a table, simulate predator captures, then compare survival rates for each arrangement.
Ask students to write which evidence best supports cooperative hunting and explain why weaker evidence is less convincing.
Sort animal behavior cards into individual or group behavior, then match each card with a likely benefit or cost.
Use wildlife tracking maps to examine how herd migration affects access to food, mates, and safer breeding areas.

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