Pollination and Seed Dispersal


NGSS Grade 2 Life Science Assessment

Ecosystems: Interactions and Dynamics

2-LS2-2   Develop a simple model that mimics the function of an animal in dispersing seeds or pollinating plants.

Models allow children to communicate ideas and explore spatial relationships in two or three dimensions. Models also provide an opportunity for children to use oral communication as well as written communication such as drawing and language. For young children, a model should be as similar as possible to the actual object or event.  A scientific model is a theory formulated to explain and integrate all the information that is known about a particular natural phenomenon. As new information is discovered, it is tested against the accepted model and if it conflicts, the model or theory may be altered or replaced to accommodate the new information.

Key concept for this performance assessment:

Animals can move around to meet their needs, but plants cannot, and they often depend on animals for pollination or to disperse their seeds.

In the whole group activity, students model one way that animals can disperse seeds. They then compare their model to the real action of plants and animals. In the individual assessment, each student is challenged to make a model of a plant being pollinated by an appropriate animal.

This performance assessment is designed for use after lessons or a unit on the interactions of plants and animals in dispersing seeds or pollinating plants.  It can be used in student portfolios to demonstrate proficiency in the Next Generation Science Standard LS2-2 – Ecosystems: Interactions, Energy, and Dynamics.

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