HS-PS1-12

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Use evidence to illustrate that some chemical reactions involve the transfer of electrons as an energy conversion occurs within a system.

Clarification statement: Evidence could include half-reactions, net ionic equations, and electrochemical cells to illustrate the mechanism of electron transfer.

Assessment boundary: Assessment is limited to completing and/or balancing oxidation and reduction half-reactions. Energy conversions are limited to qualitative statements

Note: this is a NYSED-specific performance expectation that is different from the Next Generation Science Standards.

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 5Level 4Level 3Level 2Level 1

Evaluate claims and analyze evidence to communicate that some chemical reactions involve the transfer of electrons as an energy conversion occurs within a system.

Use evidence to illustrate that some chemical reactions involve the transfer of electrons as an energy conversion occurs within a system.

Use a model (e.g. electrochemical cell) or information that provides evidence to make a claim or support the argument that some chemical reactions involve the transfer of electrons as an energy conversion occurs within a system.

Use or provide evidence to demonstrate that some chemical reactions involve the transfer of electrons within a system.

Use provided information to identify a reaction or a component(s) in a model that illustrates the transfer of electrons within a system.

Resources

Examples and discussion of resources for the learning, teaching, and assessment of HS-PS1-12.

This section could be expanded upon. You can help out by adding to this section.

Assessment

What assessment of HS-PS1-12 might look like on a NY state exam.

Smartphone Chemistry Sample Cluster Q5

NGSS Dimensions

Performance expectation HS-PS1-12 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
  • Evaluate the claims, evidence, and reasoning behind currently accepted explanations or solutions to determine the merits of arguments.

Disciplinary Core Ideas

• PS1.B: Chemical Reactions
  • Oxidation-reduction reactions are the prevailing source of power for many of today's modern conveniences.

Crosscutting Concepts

• Energy and Matter
  • The total amount of energy and matter in closed systems is conserved.
  • Changes of energy and matter in a system can be described in terms of energy and matter flows into, out of, and within that system

Page contributors: Caroline Leonard, Conrad Richman

Chemistry | HS. Chemical Reactions