# Ontario Grade 1 Science and Technology — 9 November 2026

This proposal reviews all **55 retained Grade 1 catalogue codes: 44 specific and
11 overall expectations**, against the official 2022 source and its process
context. It reuses existing claims and preserves the previously accepted B2.2
pilot. Read the [complete code-by-code mapping](ontario-grade1-science-mapping-2026-11-09.json)
for direct contribution roles, remaining conditions, candidate-only support,
prerequisite references and source hashes. The
[primary status inventory](ontario-primary-status-2026-11-09.md) describes the
wider Ontario backlog at accepted base `45e2bc0`.

## Outcome and limits

| Reviewed scope | Full semantic support | Partial | Focused gap |
| --- | ---: | ---: | ---: |
| 44 specific expectations | 14 | 30 | 0 |
| 11 overall expectations | 0 | 11 | 0 |

**Thirteen** of the 14 Full specific judgments have proposed or existing direct
associations. The fourteenth, D2.8, has semantic support in an existing material
origins claim but **no proposed Grade 1 context**, pending whole-claim age fit.
None of these labels certify learner mastery, actual delivery of an integrated
activity, a consumer's selection eligibility, or completion of all Grade 1 Science.
The two residual conceptual generalisations are Partial conditions, not approval to add topics.

The complete proposal records **74 distinct topic–code pairs across
37 specific codes and 43 existing topics**. This is **73 additional pairs**
over the accepted one-pair Science pilot, not 74 new skills. It adds 39 scoped
records and extends four existing exact-interval records with relevant codes;
no unaffected scoped records are replaced. New associations use Canada/Ontario
ages **6–7**. Flat ages and standard lists are generated from those contexts.

## Source and review method

- [Ministry Grade 1 expectations PDF](https://assets-us-01.kc-usercontent.com/fbd574c4-da36-0066-a0c5-849ffb2de96e/4b8f8ea5-e66a-4082-bfa0-795d8d7f8c08/SciTech_G1_AODA.pdf),
  all five pages, SHA-256
  `7d6463a188d376251344be94ec61a42276aa042fd77fc9cfc055c829f974d936`.
- [Full 2022 curriculum](https://assets-us-01.kc-usercontent.com/fbd574c4-da36-0066-a0c5-849ffb2de96e/36038265-bd6d-4991-882b-52b4b06c32d0/The%20Ontario%20Curriculum%20Grades%201%E2%80%938%20%E2%80%93%20Science%20and%20Technology%202022_2.pdf),
  process context, printed pages 69–80, and Grade 1, printed pages 91–101;
  SHA-256 `1ade9235dcacf15c27dcc92328d1f883c3026c1687bf40368448b39ec6e4bd74`.
  Both PDFs retrieved 9 November 2026. They are read-only evidence, not public
  dataset inputs or files redistributed in this PR.

Review considered the mandatory parts of each selected requirement, the existing
claim's description/evidence/assessment and its hard prerequisites. The detailed
mapping names direct whole/component roles separately from supporting
prerequisites. It retains required applications and performance conditions rather
than treating links as complete coverage.

The official process context allows readiness-dependent entry points; its
research, experimentation and design diagrams are flexible guidance rather than
a requirement for every advanced step in Grade 1. Conversely, Strand A requires
integration with the subject strands: a generic research or programming success
does not establish that integrated science performance. The proposal retains
these conditions instead of inventing advanced-method topics or declaring Full
from a union of generic skills.

No codes-only expectation text is copied into the report, mapping or taxonomy.
The public mapping describes Marble claims and authoring judgments, with exact
source keys for reviewers to consult the official source.

## Code-by-code overview

The JSON mapping contains the substantive rationale and remaining conditions.
`C` means direct component and `W` whole-expectation contribution. A blank holder
means no direct association is proposed; see candidate/prerequisite references
rather than treating the blank as a new-topic requirement. Overall rows retain
explicit child references and their own Partial judgment, not new direct links.

| Code | Semantic judgment | Direct topic IDs and roles |
| --- | --- | --- |
| A1 | Partial | Child reviews |
| A1.1 | Partial | `mt_XirhnAB6Ye` (C); `mt_4A4RpX-Go9` (C); `mt_vJO5Bxk4z-` (C); `mt_7VrR1GzhrN` (C) |
| A1.2 | Partial | `mt_XirhnAB6Ye` (C); `mt_MRQcEvyPJv` (C); `mt_Wa44s-f8Ws` (C); `mt_ZFwPZaDJ0_` (C); `mt_7VrR1GzhrN` (C) |
| A1.3 | Partial | `mt_hi8cVycbwn` (C); `mt_FtCLISvSGw` (C); `mt_nNYo5A-7Bl` (C); `mt_2agkUcdah9` (C) |
| A1.4 | Partial | `mt_TTH2ouwyTW` (C); `mt_FtCLISvSGw` (C) |
| A1.5 | Partial | `mt_7VrR1GzhrN` (C); `mt_o8ciHks8t2` (C); `mt_NP101Zl-4g` (C) |
| A2 | Partial | Child reviews |
| A2.1 | Partial | `mt__p5n8z5soJ` (C); `mt_sPV503BQnI` (C) |
| A2.2 | Partial | `mt_AzTrT5ySCx` (C) |
| A3 | Partial | Child reviews |
| A3.1 | Full | `mt_Q2Zj3L8u9C` (C); `mt_2agkUcdah9` (C); `mt_XbGfVhfiUz` (C) |
| A3.2 | Partial | `mt_2agkUcdah9` (C); `mt_4A4RpX-Go9` (C) |
| A3.3 | Partial | — |
| B1 | Partial | Child reviews |
| B1.1 | Partial | `mt_e6PP4ip39V` (C) |
| B1.2 | Full | `mt_deexfCHU9m` (W) |
| B2 | Partial | Child reviews |
| B2.1 | Full | `mt_cM8YS6NXqi` (W) |
| B2.2 | Partial | `mt_L1469gt34A` (C) |
| B2.3 | Partial | `mt_xT6jPzyj92` (C); `mt_fDoE-pL6Jv` (C); `mt_SdIWVjzopp` (C) |
| B2.4 | Full | `mt_83gRQ9OPkc` (C); `mt_SdIWVjzopp` (C); `mt_lp1eTsQen7` (C) |
| B2.5 | Partial | `mt_L1469gt34A` (C); `mt_e6PP4ip39V` (C) |
| B2.6 | Full | `mt_cM8YS6NXqi` (C); `mt_EygMHKs8Ed` (C) |
| C1 | Partial | Child reviews |
| C1.1 | Partial | — |
| C1.2 | Partial | — |
| C2 | Partial | Child reviews |
| C2.1 | Partial | `mt_cxJRc15osy` C; `mt_iGSfQg3g5c` C |
| C2.2 | Partial | `mt_iGSfQg3g5c` (C); `mt_PiWZA8Z0ZJ` (C); `mt_3v0VNkwquK` (C) |
| C2.3 | Partial | `mt_cxJRc15osy` (C); `mt_EygMHKs8Ed` (C) |
| C2.4 | Partial | `mt_iGSfQg3g5c` (C); `mt_cxJRc15osy` (C) |
| C2.5 | Partial | — |
| C2.6 | Partial | — |
| D1 | Partial | Child reviews |
| D1.1 | Partial | `mt_deexfCHU9m` (C) |
| D1.2 | Partial | `mt_rTn43s8RNX` (C) |
| D2 | Partial | Child reviews |
| D2.1 | Full | `mt_5r47Pvstyn` (C); `mt_ZAJvTcroFO` (C) |
| D2.2 | Partial | `mt_SdIWVjzopp` C |
| D2.3 | Full | `mt_ZAJvTcroFO` (W) |
| D2.4 | Full | `mt_vJO5Bxk4z-` (C); `mt_auVZZEuXjs` (C) |
| D2.5 | Full | `mt_Q2Zj3L8u9C` (W) |
| D2.6 | Full | `mt_rTn43s8RNX` (W) |
| D2.7 | Partial | `mt_FtCLISvSGw` (C) |
| D2.8 | Full | — |
| E1 | Partial | Child reviews |
| E1.1 | Partial | `mt_Dj2xr8CoI0` (C); `mt_2agkUcdah9` (C) |
| E1.2 | Partial | `mt_go5i87u2b9` (C); `mt_Dj2xr8CoI0` (C) |
| E2 | Partial | Child reviews |
| E2.1 | Partial | No direct association; spin/orbit and polar-season candidates deferred |
| E2.2 | Full | `mt_fI-8iqf_Id` (C); `mt_fk33IEGP-T` (C) |
| E2.3 | Partial | `mt_PiWZA8Z0ZJ` (C); `mt_iGSfQg3g5c` (C); `mt_K0mZxY2AM8` (C); `mt_go5i87u2b9` (C) |
| E2.4 | Full | `mt_go5i87u2b9` (C); `mt_HZvTriQWTh` (C) |
| E2.5 | Partial | `mt_go5i87u2b9` (C) |
| E2.6 | Full | `mt_Dj2xr8CoI0` (W) |

## Reuse decisions

B2.4 has Full semantic support through **Bones & Muscles**, **The Heart & Blood**
and **Body Parts & Senses** together. Their existing evidence supplies varied
locations/functions; no anatomy topic is created or broadened.

Habitat/interdependence claims contribute to B2.1 and B2.6 even though some hard
prerequisites lack a matching Ontario interval. Missing local prerequisite
context is a readiness review issue; it does not erase semantic contribution.

Weak matches were rejected: season knowledge and clothing choice alone do not
establish an energy comparison; identifying an embedded computer does not explain
its impact; an environmental response list does not demonstrate an executed
waste project; observing annual daylight does not explain the cause of seasons.
Those items remain prerequisites, candidates or explicit conditions, not inflated
direct links.

## Matters requiring a concrete follow-up

- **C2.1:** retain the direct body-energy and sunlight-warming components, then
  review assessment of the common energy idea across contexts. Later technical
  vocabulary, energy stores and conservation are not equivalent mastery evidence;
  another concrete example or a Grade 1 clone does not resolve the generalisation.
- **D2.2:** retain the skeletal-support component and review recognition of
  supporting frameworks across natural and built examples. Generic construction
  practice does not establish that generalisation, and formal load-path analysis
  is not an elementary requirement. A new topic is not pre-authorized.
- **C2.5 and D2.8:** existing natural-resource/material claims contain relevant
  content. Review their whole-claim age fit before adding a 6–7 interval; do not
  create grade/country clones merely to avoid the decision. Material origins has
  semantic support even though its proposed local context remains deferred.
- **E2.1:** causal seasonal content exists within a polar-specific claim; the topic
  titled Why seasons change is observational. Resolve assessment/context fit or
  justify a scope-preserving extraction before changing claims.
- **A3.3:** verify resources and their scientific contributions from more than one
  community. A single biography or an unverified general statement about
  ecological knowledge is insufficient. Resource work should precede new-topic
  proposals.
- **Other Partial conditions:** integrated performances, environmental quality,
  practical action, source variety, temporal observations and adaptive
  interpretation are detailed per code. A condition is not automatically a new
  topic, and normal task design may discharge some of them.

## Readiness diagnostic

For each direct holder, the mapping lists hard-prerequisite IDs without an
explicit Ontario context covering the full 6–7 interval. This is a narrow public
context diagnostic, **not** an implementation of a consumer's selection algorithm
or a certification of selectable coverage. Framework/global guidance, consumer
rules and actual prerequisites need separate consideration. No prerequisite edge
or age-only context is invented to make the diagnostic disappear.

There are **10 distinct referenced prerequisites** in that diagnostic.
They include habitat/living-things vocabulary, organism naming, material grouping,
data presentation, smart devices and planet naming. Review
those contexts and any over-strong historical dependencies without weakening
claims or changing edges as an incidental alignment edit.

## Validation and publication boundary

Public schema/reference validation and generated-artifact agreement pass. The
proposal preserves stable IDs, every topic's authored name/description/evidence/
assessment, dependency bytes, authored research, catalogue, clusters and archives.
Only scoped associations, their compatibility fields/bindings and manifest change.
The existing topic count remains 1,861 and dependencies remain 4,003. All 94 public
regression tests pass. Independent readback matches all 44 specific paragraphs
between the standalone and full official PDFs, reconciles all 55 code dispositions
and direct links, and confirms the preservation statements above.

This is an ordinary repository proposal. No DB or learner writes occurred, and
there is no downstream publication receipt. Remaining source/assessment issues
are explicit work items rather than a declaration that Ontario is finished.

Lead review deferred the proposed 6–7 spin/orbit context: relevance to a daily-cycle component does not establish whole-claim age fit. The existing age-7 start is preserved; no replacement topic is created.

Independent reuse review records the concrete energy and natural skeletal-support contributions. Their remaining cross-context generalisations stay Partial; neither item is treated as an empty mapping or an automatic new-topic requirement.