RS4K Book 6 — Astronomy (Ch 18–22): Grade 6 atoms-first chapters. Foundation 100%, Gap 0.0%, Map Error 0.0%, Practices 71%, no FSEs. Observational and tool-centered: telescopes, timekeeping, solar-system bodies, exoplanets. Where mechanism appears (stellar outbursts as charged particles) it is correct. Recommended Deep.
| Program | RS4K - Science Book 6 — Astronomy |
| Unit | Ch 18–22: Technology in Astronomy | Time, Clocks, and the Stars | Our Solar System | Other Solar Systems | Working Together |
| Publisher | Gravitas Publications Inc. |
| Year | 2025 |
| Grade Band | Grade 6 |
RS4K Book 6 Astronomy scores Foundation 100%. 8 passages (1 mechanism, 7 observational), all mechanism passages atomically grounded. Zero map errors. Zero confirmed FSEs.
Astronomy is observational and tool-centered: telescopes and spectroscopy, star atlases, timekeeping, solar-system structure, exoplanet detection (transit method), and the search for life. Mechanism content emphasizes how astronomers observe rather than stellar physics. Where mechanism appears (stellar outbursts as electrically charged particles) it is correct.
“VY Canis Majoris emits large amounts of gas during stellar outbursts, which are eruptions of electrically charged particles from a star’s surface.” (Ch21, p.220)
Practices: 71% (green). 3 PRESENT, 4 PARTIAL. Constellation navigation activity; exoplanet data tables; parsec/AU distance reasoning. Model-building, investigation, math, and argumentation PARTIAL.
Nothing structural.
| Total Passages Scored | 8 |
| 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 | 71% - 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. |
Observational and tool-centered astronomy. Where mechanism appears (stellar outbursts as charged particles) it is correct. No factual or ontological errors.
Exoplanet detection via transit method. Parsec/AU distance reasoning. Stellar outbursts as charged particles.
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.
This file covers the whole program (all five subject strands). It is the curated set for the program, not for this strand alone.
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