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2nd Grade

Ecosystems: Interactions, Energy, and Dynamics

 

Students who demonstrate understanding can:

Performance Expectations
 

 

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

Clarification Statement and Assessment Boundary

Clarification Statement: none

Assessment Boundary: none

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.

Develop a simple model based on evidence to represent a proposed object or tool. (2-LS2-2)

Disciplinary Core Ideas

LS2.A:  Interdependent Relationships in Ecosystems

Plants depend on animals for pollination or to move their seeds around. (2-LS2-2)

ETS1.B:  Developing Possible Solutions

Designs can be conveyed through sketches, drawings, or physical models. These representations are useful in communicating ideas for a problem’s solutions to other people. (secondary to 2-LS2-2)

Crosscutting Concepts

Structure and Function

The shape and stability of structures of natural and designed objects are related to their function(s). (2-LS2-2)

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
  • 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)
  • MP.4 - Model with mathematics. (2-LS2-2)