2-LS2-1   Ecosystems: Interactions, Energy, and Dynamics

Students who demonstrate understanding can:

2-LS2-1. Plan and conduct an investigation to determine if plants need sunlight and water to grow. [Assessment Boundary: Assessment is limited to testing one variable at a time.]
The performance expectation above was developed using the following elements from the NRC document A Framework for K-12 Science Education:

Science and Engineering Practices

Planning and Carrying Out Investigations

Planning and carrying out investigations to answer questions or test solutions to problems in K–2 builds on prior experiences and progresses to simple investigations, based on fair tests, which provide data to support explanations or design solutions.

Disciplinary Core Ideas

LS2.A: Interdependent Relationships in Ecosystems

Crosscutting Concepts

Cause and Effect

Connections to other DCIs in second grade: N/A

Articulation of DCIs across grade-levels:

K.LS1.C ; K.ESS3.A ; 5.LS1.C

Common Core State Standards Connections:

ELA/Literacy —
W.2.7 Participate in shared research and writing projects (e.g., read a number of books on a single topic to produce a report; record science observations). (2-LS2-1)
W.2.8 Recall information from experiences or gather information from provided sources to answer a question. (2-LS2-1)
Mathematics —
MP.2 Reason abstractly and quantitatively. (2-LS2-1)
MP.4 Model with mathematics. (2-LS2-1)
MP.5 Use appropriate tools strategically. (2-LS2-1)

2-LS2-1   Ecosystems: Interactions, Energy, and Dynamics

Students who demonstrate understanding can:

2-LS2-1. Plan and conduct an investigation to determine if plants need sunlight and water to grow. [Assessment Boundary: Assessment is limited to testing one variable at a time.]
The performance expectation above was developed using the following elements from the NRC document A Framework for K-12 Science Education:

Science and Engineering Practices

Planning and Carrying Out Investigations

Planning and carrying out investigations to answer questions or test solutions to problems in K–2 builds on prior experiences and progresses to simple investigations, based on fair tests, which provide data to support explanations or design solutions.

Disciplinary Core Ideas

LS2.A: Interdependent Relationships in Ecosystems

Crosscutting Concepts

Cause and Effect

Connections to other DCIs in second grade: N/A

Articulation of DCIs across grade-levels:

K.LS1.C ; K.ESS3.A ; 5.LS1.C

Common Core State Standards Connections:

ELA/Literacy —
W.2.7 Participate in shared research and writing projects (e.g., read a number of books on a single topic to produce a report; record science observations). (2-LS2-1)
W.2.8 Recall information from experiences or gather information from provided sources to answer a question. (2-LS2-1)
Mathematics —
MP.2 Reason abstractly and quantitatively. (2-LS2-1)
MP.4 Model with mathematics. (2-LS2-1)
MP.5 Use appropriate tools strategically. (2-LS2-1)

2-LS2-1   Ecosystems: Interactions, Energy, and Dynamics

Students who demonstrate understanding can:

2-LS2-1. Plan and conduct an investigation to determine if plants need sunlight and water to grow. [Assessment Boundary: Assessment is limited to testing one variable at a time.]
The performance expectation above was developed using the following elements from the NRC document A Framework for K-12 Science Education:

Science and Engineering Practices

Planning and Carrying Out Investigations

Planning and carrying out investigations to answer questions or test solutions to problems in K–2 builds on prior experiences and progresses to simple investigations, based on fair tests, which provide data to support explanations or design solutions.

Disciplinary Core Ideas

LS2.A: Interdependent Relationships in Ecosystems

Crosscutting Concepts

Cause and Effect

Connections to other DCIs in second grade: N/A

Articulation of DCIs across grade-levels:

K.LS1.C ; K.ESS3.A ; 5.LS1.C

Common Core State Standards Connections:

ELA/Literacy —
W.2.7 Participate in shared research and writing projects (e.g., read a number of books on a single topic to produce a report; record science observations). (2-LS2-1)
W.2.8 Recall information from experiences or gather information from provided sources to answer a question. (2-LS2-1)
Mathematics —
MP.2 Reason abstractly and quantitatively. (2-LS2-1)
MP.4 Model with mathematics. (2-LS2-1)
MP.5 Use appropriate tools strategically. (2-LS2-1)

* The performance expectations marked with an asterisk integrate traditional science content with engineering through a Practice or Disciplinary Core Idea.

The section entitled “Disciplinary Core Ideas” is reproduced verbatim from A Framework for K-12 Science Education: Practices, Cross-Cutting Concepts, and Core Ideas. Integrated and reprinted with permission from the National Academy of Sciences.

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Related Evidence Statements
2-LS2-1-1 Evidence Statements
Related Quality Units
Grade 2: Next Generation Science Storylines: Why is Our Corn Changing? (v2.1)
Grade 2: Portland Public Schools: Seeds, Scat, Habitat
Related Example Bundles
2nd Grade Thematic Model: Bundle 2
2nd Grade Topic Model: Bundle 3

How to Read the Standards

The standards integrate three dimensions within each standard and have intentional connections across standards. More...