MS-LS2-2

Construct an explanation that predicts patterns of interactions among organisms in a variety of ecosystems.

Clarification statement: Emphasis is on predicting patterns of interactions such as competition, predation, mutualism, and parasitism in different ecosystems in terms of the relationships among and between organisms.

Performance Level Descriptions

PLDs communicate the knowledge and skills expected of students to demonstrate proficiency in each Learning Standard. NYS assessments classify student performance into one of five levels.

Level 4Level 3Level 2Level 1

Construct an explanation that predicts multiple patterns of interactions, both positive and negative, among organisms in a variety of ecosystems.

Construct an explanation that predicts patterns of interactions among organisms in a variety of ecosystems.

Given a pattern of interaction (interdependent relationship) in an ecosystem, identify which organisms display this interaction.

Identify the type of interaction (interdependent relationship) from those provided, between two different organisms in an ecosystem.

Resources

Examples and discussion of resources for the learning, teaching, and assessment of MS-LS2-2.

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Assessment

What assessment of MS-LS2-2 might look like on a NY state exam.

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NGSS Dimensions

Performance expectation MS-LS2-2 was developed using the following elements from the NRC document A Framework for K-12 Science Education:

Science and Engineering Practices

Disciplinary Core Ideas

Crosscutting Concepts

Connections to Other Standards

MS-LS2-2 connections to ELA, math, and other science standards as outlined by the NYS Education Department:

Page contributors: Caroline Leonard, Shirley Shameen, Conrad Richman

P-8 | MS. Interdependent Relationships in Ecosystems