PhD Science L1 M3 (Grade 1, Sound/Recycled Orchestra) - ✕ Not Recommended (Type 6 Clean-but-Empty). Foundation 0% under strict atomic-foundation scoring. Cross-grade scope discipline documented (TE defers air molecules to Level 5; matter to Level 2; waves to Level 4; eardrum internals to Level 4 Module 3). Eight-lesson Engineering Challenge. Practices 100% green.
| Program | PhD Science |
| Unit | Level 1 Module 3: Sound (Recycled Orchestra of Cateura) |
| Publisher | Great Minds PBC |
| Author | Great Minds PBC |
| Grade Band | Grade 1 (K-2) |
| NGSS Alignment | 1-PS4-1, 1-PS4-4, K-2-ETS1-2, K-2-ETS1-3 (DCIs: PS4.A, PS4.C, ETS1.B, ETS1.C) |
Verdict: ✕ Not Recommended (atomic-molecular foundations). Foundation_calc 0.0%, shallow tier. Practices 100% green. Zero confirmed FSEs. Zero map errors.
Strict atomic-foundation scoring applied. Across 29 lessons of vibration, sound traveling, eardrum response, and engineering design for communication devices, atoms/molecules/particles do not appear - appropriate scope for a Grade 1 sound unit. The Teacher Edition documents extensive cross-grade scope discipline with four explicit deferrals: matter (Level 2), air molecules (Level 5), waves (Level 4), and eardrum internals (Level 4 Module 3).
Anchored on the Recycled Orchestra of Cateura (Paraguay). Essential Question: How does the Recycled Orchestra make music?
Concept 1 (L1-10) - Making Sound: Vibrating instruments → vibrating objects → recycled instruments → music box. Knowledge: Sound is caused by vibrating objects.
Concept 2 (L11-17) - Effects of Sound: Sound travels in all directions; quieter with distance; eardrum + balloon vibrate from sound; airplane affects house. Knowledge: Sound can cause objects to vibrate.
Engineering Challenge (L18-25): Talking drums + communication devices → design problem → prototype + test → compare designs with data. K-2-ETS1-2 + K-2-ETS1-3 implementation.
Application (L26-29): Socratic Seminar (L26). Cup-telephone EOM Part A + Part B (L27-28). Debrief (L29).
"This module does not address the role of vibrating air molecules in helping transmit sound because this phenomenon is conceptually challenging for Level 1 students. Students will develop an understanding of air as matter in Level 5." (TE p.9) - Cross-grade scope discipline statement.
"PhD Science introduces students to the concept of matter in Level 2. To make content related to PS4.A accessible to Level 1 students, this module refers instead to objects and parts of objects that students can see or feel vibrate." (TE p.9) - Pedagogical staging documented.
"Sound is caused by vibrating objects." / "Sound can cause objects to vibrate." - Knowledge statements implement 1-PS4-1.
FSE_CONFIRMED: 0. Physics correct at Grade 1 level.
Map errors: 0. Standard NGSS K-2 sound-as-mover phrasing classified as standard scientific terminology (context override). No AEC - PhD Science does NOT use "particles" framing at K-2.
Practices: 100% green. All seven NGSS practices INTENTIONALLY_DEVELOPED. Eight-lesson Engineering Challenge (L18-25). 29-lesson Recycled Orchestra anchor with iterative model revision. Three culturally distinct sound-communication anchors (Recycled Orchestra Paraguay + Talking Drums + Cup Telephone). Two-part Cup Telephone EOM (predict + explain). Socratic Seminar at Grade 1.
For Foundation: under strict scoring, the categorical change available is introducing atomic content - the design choice PhD Science explicitly defers to higher grades.
For practices: nothing - 100% is the maximum.
Type 6: Clean-but-Empty. Same nominal Foundation as the OSE K-2 Elementary programs reviewed and OSE 8.2 Sound under strict scoring. PhD Science documents cross-grade scope discipline; OSE K-2 does not. Within PhD Science K-2 programs reviewed, LK M1 + L1 M2 + L1 M3 (this) + L2 M1 all share 0% Foundation with documented cross-grade staging.
| Total Passages Scored | 30 |
| Raw Gap Error | 100.0% (13/13 mechanism passages - no atoms/molecules named anywhere in unit) FALSE = atoms/molecules not present before students are asked to explain. The student is navigating without a starting point. |
| Adjusted Gap Error | 100.0% (13/13 UNSCAFFOLDED - atomic theory not introduced) 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 | 100% - 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. |
Type 6 Clean-but-Empty under strict atomic-foundation scoring. Cross-grade scope discipline documented in TE: four explicit deferrals (matter Level 2; air molecules Level 5; waves Level 4; eardrum internals Level 4 Module 3). Comparison with OSE 8.2 (Grade 8 Sound): both teach sound but with different design philosophies.
Cross-grade scope discipline documented. Eight-lesson Engineering Challenge (L18-25). 29-lesson sustained model revision. Three culturally distinct sound-communication anchors. Cup telephone EOM Part A/B. Socratic Seminar at Grade 1. Practices 100% green.
Not Recommended (Type 6 Clean-but-Empty - atomic theory absent at K-2) - All 13 mechanism passages UNSCAFFOLDED. PhD Science design philosophy: defer atomic mechanism of sound to Level 5; matter to Level 2; waves to Level 4; eardrum internals to Level 4 Module 3.
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 unit scored on this page.
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