Performance expectationCreate a computational model to calculate the change in the energy of one component in a system when the change in energy of the other component(s) and energy flows in and out of the system are known.
Emphasis is on explaining the meaning of mathematical expressions used in the model.
Assessment is limited to basic algebraic expressions or computations; to systems of two or three components; and to thermal energy, kinetic energy, and/or the energies in gravitational, magnetic, or electric fields.
Conservation of energy, thermal energy, endothermic and exothermic reactions.
This performance expectation appears in more than one course map. The note above is the scope NYSED specifies for Physical Science: Chemistry.
Every item written to HS-PS3-1 has to assess all three dimensions together, not the content alone. This is the structural change that made older practice material stop matching the exam.
Using Mathematics and Computational Thinking
What a student at each level can do with HS-PS3-1. These drive how a cluster spreads difficulty across its items.
Summarised by ScienceIQ from the NYSED Performance Level Descriptions for Physical Science: Chemistry. These are our wording, not the Department’s — the official descriptions are the authority.
Identify energy changes in one or more system components.
Use a model, data, or representation to predict or describe energy transfer.
Use a computational model or representation to calculate component energy change.
Create a computational model to calculate energy change when energy flows are known.
Phenomenon stimulus, connected items across the required types, answer key, rubric and figures drawn deterministically from a structured spec — in the format your students will sit.