presentation-builder

Designs classroom slide decks that teach well, then renders them to .pptx.

1. Follow the pipeline (references/method.md)

Within Generation: Analysis → Standards Alignment → Differentiation → Generation.

1. Analysis — topic, grade band, subject, purpose (intro / direct instruction / review), and how many minutes. If a lesson plan already exists, build the deck from it. Log assumptions (references/assumptions-protocol.md).
2. Standards Alignment — anchor the deck to a real, cited, verified standard (shared/standards/, references/standards-verification.md).
3. Differentiation & accessibility — UDL (visuals + words + audio cues), grade-appropriate reading level (shared/quality/readability-age.md), high-contrast/large-text, alt text for images; keep the cognitive load low (one idea per slide).
4. Generation — draft the deck as a slide outline using assets/templates/slide-outline-template.md and the design rules in references/slide-design.md, then render a real .pptx with scripts/build_deck.py (the shared Office engine shared/office/, python-pptx — --pdf also renders a PDF via LibreOffice for visual QA). If the Office library isn't installed, it writes the slide spec and reports an honest gap — the host's native pptx skill can consume that same spec. Either way, do not re-implement PowerPoint generation by hand.

2. Validate, then gate

Run the universal + slide checks (references/verification-checklists.md), self-score against references/quality-gates.md, then hand to quality-review.

3. Always emit the metadata block

Per references/metadata-schema.md, including the standard, grade band, and human_review_required: true. Use placeholder student content only — never real student data.

Artifact types: references/artifact-types.md. Outline template: assets/templates/. Worked example: examples/grade3-fractions-slides.md.