RS4K Book 6 — Physics (Ch 10–13): Grade 6 atoms-first chapters. Foundation 100%, Gap 0.0%, Map Error 0.0%, Practices 86%, no FSEs. Newtonian mechanics and kinematics with heavy correct mathematics. Friction grounded in atoms rubbing. No reification of energy. Recommended Deep.
| Program | RS4K - Science Book 6 — Physics |
| Unit | Ch 10–13: Technology in Physics | What Is Motion? | Linear Motion | Nonlinear Motion |
| Publisher | Gravitas Publications Inc. |
| Year | 2025 |
| Grade Band | Grade 6 |
RS4K Book 6 Physics scores Foundation 100%. 9 passages (1 mechanism, 8 observational), all mechanism passages atomically grounded. Zero map errors. Zero confirmed FSEs.
Newtonian mechanics and kinematics: inertia, mass, momentum, speed/velocity/acceleration — taught as observational principles with correct mathematics. Force is framed as an action that changes motion. Friction is grounded in atoms rubbing against atoms. No reification of energy.
“If you slide a hockey puck on the street, the atoms in the hockey puck rub against the atoms in the street. The rubbing of these atoms against each other causes frictional force.” (Ch11, p.113)
Practices: 86% (green). 5 PRESENT, 2 PARTIAL. Motion and pendulum experiments with measurements. Algebraic manipulation of s=d/t, p=m×v, a=Δv/Δt with worked problems. Model-building and argumentation PARTIAL.
Nothing structural.
| Total Passages Scored | 9 |
| Raw Gap Error | 0.0% FALSE = atoms/molecules not present before students are asked to explain. The student is navigating without a starting point. |
| Adjusted Gap Error | 0.0% UNSCAFFOLDED = no atomic grounding at all. LESSON_ATOMS = atoms mentioned elsewhere in lesson but not connected to this concept. |
| Substance-Model Errors (REI) | 0 Curriculum treats a process or outcome as a substance - "heat flows," "energy is stored," "electricity flows like water." Student builds a substance ontology. |
| Label-as-Explanation (LAE) | 0 Curriculum provides a name and treats it as an explanation - "this happens because of gravity." Student believes knowing the name IS understanding the concept. |
| Vague-Entity Errors (AEC) | 0 Curriculum uses vague entities ("tiny particles," "building blocks") without specifying atoms or molecules. Student invents their own model with macroscopic properties. |
| Factual Science Errors (FSE) | 0 Statements that are scientifically incorrect - not imprecise framing, but wrong. Any confirmed FSE = Not Recommended. |
| Practices | 86% - Deep Seven practices scored PRESENT, PARTIAL, or ABSENT and averaged: asking questions, developing and using models, planning and carrying out investigations, analyzing and interpreting data, using mathematics, constructing explanations and designing solutions, and argument from evidence. Higher is better, the opposite direction from gap and map errors. Reported but not part of the Foundation Score or the verdict. |
Newtonian mechanics with correct mathematics. Friction grounded in atomic contact. No reification of energy.
Heavy correct kinematics mathematics at grade 6 (algebraic rearrangement of s=d/t, momentum, acceleration). Friction as atomic contact.
Recommended (Deep) — Deep by design -
Evidence for every entry is published at three levels. Each level states what it contains and what it leaves out.
Scores, verdict, and the full pattern count for this unit are above: adjusted gap, REI / LAE / AEC counts, FSE status, and the seven-practice score. Passage-level detail for this unit is carried in the downloadable evidence file.
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