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

Students who demonstrate understanding can:

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

Developing and Using Models

Modeling in K–2 builds on prior experiences and progresses to include using and developing models (i.e., diagram, drawing, physical replica, diorama, dramatization, or storyboard) that represent concrete events or design solutions.

Disciplinary Core Ideas

LS2.A: Interdependent Relationships in Ecosystems

ETS1.B: Developing Possible Solutions

Crosscutting Concepts

Structure and Function

Connections to other DCIs in second grade: N/A

Articulation of DCIs across grade-levels:

K.ETS1.A ; 5.LS2.A

Common Core State Standards Connections:

ELA/Literacy —
SL.2.5 Create audio recordings of stories or poems; add drawings or other visual displays to stories or recounts of experiences when appropriate to clarify ideas, thoughts, and feelings. (2-LS2-2)
Mathematics —
MP.4 Model with mathematics. (2-LS2-2)
2.MD.D.10 Draw a picture graph and a bar graph (with single-unit scale) to represent a data set with up to four categories. Solve simple put-together, take-apart, and compare problems using information presented in a bar graph. (2-LS2-2)

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

Students who demonstrate understanding can:

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

Developing and Using Models

Modeling in K–2 builds on prior experiences and progresses to include using and developing models (i.e., diagram, drawing, physical replica, diorama, dramatization, or storyboard) that represent concrete events or design solutions.

Disciplinary Core Ideas

LS2.A: Interdependent Relationships in Ecosystems

ETS1.B: Developing Possible Solutions

Crosscutting Concepts

Structure and Function

Connections to other DCIs in second grade: N/A

Articulation of DCIs across grade-levels:

K.ETS1.A ; 5.LS2.A

Common Core State Standards Connections:

ELA/Literacy —
SL.2.5 Create audio recordings of stories or poems; add drawings or other visual displays to stories or recounts of experiences when appropriate to clarify ideas, thoughts, and feelings. (2-LS2-2)
Mathematics —
MP.4 Model with mathematics. (2-LS2-2)
2.MD.D.10 Draw a picture graph and a bar graph (with single-unit scale) to represent a data set with up to four categories. Solve simple put-together, take-apart, and compare problems using information presented in a bar graph. (2-LS2-2)

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

Students who demonstrate understanding can:

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

Developing and Using Models

Modeling in K–2 builds on prior experiences and progresses to include using and developing models (i.e., diagram, drawing, physical replica, diorama, dramatization, or storyboard) that represent concrete events or design solutions.

Disciplinary Core Ideas

LS2.A: Interdependent Relationships in Ecosystems

ETS1.B: Developing Possible Solutions

Crosscutting Concepts

Structure and Function

Connections to other DCIs in second grade: N/A

Articulation of DCIs across grade-levels:

K.ETS1.A ; 5.LS2.A

Common Core State Standards Connections:

ELA/Literacy —
SL.2.5 Create audio recordings of stories or poems; add drawings or other visual displays to stories or recounts of experiences when appropriate to clarify ideas, thoughts, and feelings. (2-LS2-2)
Mathematics —
MP.4 Model with mathematics. (2-LS2-2)
2.MD.D.10 Draw a picture graph and a bar graph (with single-unit scale) to represent a data set with up to four categories. Solve simple put-together, take-apart, and compare problems using information presented in a bar graph. (2-LS2-2)

* 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-LS2-2-1 Evidence Statements
Related Quality Units
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...