HS-LS2-6    Ecosystems: Interactions, Energy, and Dynamics

Students who demonstrate understanding can:

HS-LS2-6. Evaluate claims, evidence, and reasoning that the complex interactions in ecosystems maintain relatively consistent numbers and types of organisms in stable conditions, but changing conditions may result in a new ecosystem. [Clarification Statement: Examples of changes in ecosystem conditions could include modest biological or physical changes, such as moderate hunting or a seasonal flood; and extreme changes, such as volcanic eruption or sea level rise.]
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

Engaging in Argument from Evidence

Engaging in argument from evidence in 9–12 builds on K–8 experiences and progresses to using appropriate and sufficient evidence and scientific reasoning to defend and critique claims and explanations about the natural and designed world(s). Arguments may also come from current scientific or historical episodes in science.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 

         Connections to Nature of Science

 

Scientific Knowledge is Open to Revision in Light of New Evidence

  • Scientific argumentation is a mode of logical discourse used to clarify the strength of relationships between ideas and evidence that may result in revision of an explanation.

Disciplinary Core Ideas

LS2.C: Ecosystem Dynamics, Functioning, and Resilience

Crosscutting Concepts

Stability and Change

Connections to other DCIs in this grade-band:

HS.ESS2.E

Articulation of DCIs across grade-bands:

MS.LS2.A ; MS.LS2.C ; MS.ESS2.E ; MS.ESS3.C

Common Core State Standards Connections:

ELA/Literacy -
RST.9-10.8 Assess the extent to which the reasoning and evidence in a text support the author’s claim or a recommendation for solving a scientific or technical problem. (HS-LS2-6)
RST.11-12.1 Cite specific textual evidence to support analysis of science and technical texts, attending to important distinctions the author makes and to any gaps or inconsistencies in the account. (HS-LS2-6)
RST.11-12.7 Integrate and evaluate multiple sources of information presented in diverse formats and media (e.g., quantitative data, video, multimedia) in order to address a question or solve a problem. (HS-LS2-6)
RST.11-12.8 Evaluate the hypotheses, data, analysis, and conclusions in a science or technical text, verifying the data when possible and corroborating or challenging conclusions with other sources of information. (HS-LS2-6)
Mathematics -
MP.2 Reason abstractly and quantitatively. (HS-LS2-6)
HSS-ID.A.1 Represent data with plots on the real number line. (HS-LS2-6)
HSS-IC.A.1 Understand statistics as a process for making inferences about population parameters based on a random sample from that population. (HS-LS2-6)
HSS-IC.B.6 Evaluate reports based on data. (HS-LS2-6)

HS-LS2-6    Ecosystems: Interactions, Energy, and Dynamics

Students who demonstrate understanding can:

HS-LS2-6. Evaluate claims, evidence, and reasoning that the complex interactions in ecosystems maintain relatively consistent numbers and types of organisms in stable conditions, but changing conditions may result in a new ecosystem. [Clarification Statement: Examples of changes in ecosystem conditions could include modest biological or physical changes, such as moderate hunting or a seasonal flood; and extreme changes, such as volcanic eruption or sea level rise.]
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

Engaging in Argument from Evidence

Engaging in argument from evidence in 9–12 builds on K–8 experiences and progresses to using appropriate and sufficient evidence and scientific reasoning to defend and critique claims and explanations about the natural and designed world(s). Arguments may also come from current scientific or historical episodes in science.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 

         Connections to Nature of Science

 

Scientific Knowledge is Open to Revision in Light of New Evidence

  • Scientific argumentation is a mode of logical discourse used to clarify the strength of relationships between ideas and evidence that may result in revision of an explanation.

Disciplinary Core Ideas

LS2.C: Ecosystem Dynamics, Functioning, and Resilience

Crosscutting Concepts

Stability and Change

Connections to other DCIs in this grade-band:

HS.ESS2.E

Articulation of DCIs across grade-bands:

MS.LS2.A ; MS.LS2.C ; MS.ESS2.E ; MS.ESS3.C

Common Core State Standards Connections:

ELA/Literacy -
RST.9-10.8 Assess the extent to which the reasoning and evidence in a text support the author’s claim or a recommendation for solving a scientific or technical problem. (HS-LS2-6)
RST.11-12.1 Cite specific textual evidence to support analysis of science and technical texts, attending to important distinctions the author makes and to any gaps or inconsistencies in the account. (HS-LS2-6)
RST.11-12.7 Integrate and evaluate multiple sources of information presented in diverse formats and media (e.g., quantitative data, video, multimedia) in order to address a question or solve a problem. (HS-LS2-6)
RST.11-12.8 Evaluate the hypotheses, data, analysis, and conclusions in a science or technical text, verifying the data when possible and corroborating or challenging conclusions with other sources of information. (HS-LS2-6)
Mathematics -
MP.2 Reason abstractly and quantitatively. (HS-LS2-6)
HSS-ID.A.1 Represent data with plots on the real number line. (HS-LS2-6)
HSS-IC.A.1 Understand statistics as a process for making inferences about population parameters based on a random sample from that population. (HS-LS2-6)
HSS-IC.B.6 Evaluate reports based on data. (HS-LS2-6)

HS-LS2-6    Ecosystems: Interactions, Energy, and Dynamics

Students who demonstrate understanding can:

HS-LS2-6. Evaluate claims, evidence, and reasoning that the complex interactions in ecosystems maintain relatively consistent numbers and types of organisms in stable conditions, but changing conditions may result in a new ecosystem. [Clarification Statement: Examples of changes in ecosystem conditions could include modest biological or physical changes, such as moderate hunting or a seasonal flood; and extreme changes, such as volcanic eruption or sea level rise.]
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

Engaging in Argument from Evidence

Engaging in argument from evidence in 9–12 builds on K–8 experiences and progresses to using appropriate and sufficient evidence and scientific reasoning to defend and critique claims and explanations about the natural and designed world(s). Arguments may also come from current scientific or historical episodes in science.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 

         Connections to Nature of Science

 

Scientific Knowledge is Open to Revision in Light of New Evidence

  • Scientific argumentation is a mode of logical discourse used to clarify the strength of relationships between ideas and evidence that may result in revision of an explanation.

Disciplinary Core Ideas

LS2.C: Ecosystem Dynamics, Functioning, and Resilience

Crosscutting Concepts

Stability and Change

Connections to other DCIs in this grade-band:

HS.ESS2.E

Articulation of DCIs across grade-bands:

MS.LS2.A ; MS.LS2.C ; MS.ESS2.E ; MS.ESS3.C

Common Core State Standards Connections:

ELA/Literacy -
RST.9-10.8 Assess the extent to which the reasoning and evidence in a text support the author’s claim or a recommendation for solving a scientific or technical problem. (HS-LS2-6)
RST.11-12.1 Cite specific textual evidence to support analysis of science and technical texts, attending to important distinctions the author makes and to any gaps or inconsistencies in the account. (HS-LS2-6)
RST.11-12.7 Integrate and evaluate multiple sources of information presented in diverse formats and media (e.g., quantitative data, video, multimedia) in order to address a question or solve a problem. (HS-LS2-6)
RST.11-12.8 Evaluate the hypotheses, data, analysis, and conclusions in a science or technical text, verifying the data when possible and corroborating or challenging conclusions with other sources of information. (HS-LS2-6)
Mathematics -
MP.2 Reason abstractly and quantitatively. (HS-LS2-6)
HSS-ID.A.1 Represent data with plots on the real number line. (HS-LS2-6)
HSS-IC.A.1 Understand statistics as a process for making inferences about population parameters based on a random sample from that population. (HS-LS2-6)
HSS-IC.B.6 Evaluate reports based on data. (HS-LS2-6)

* 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
HS-LS2-6-1 Evidence Statements
Related Quality Units
High School: Next Generation Science Storylines: How Can Science Be Used to Help Make Our Lives Better?
High School: OpenSciEd Unit B.1: Ecosystems: Interactions, Energy, Dynamics
Related Example Bundles
High School Conceptual Progression Model Course 3: Bundle 2
High School Domains Model Course 3: Life Sciences: Bundle 5

How to Read the Standards

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