Theme: Chalk Sage (light, pedagogical) · Audience: early-career secondary teachers · Artifacts: coach.html (2D) · 3d.html + coach.js (3D classroom) · shared case file classroom.js
One-line: a differentiation decision coach scoring whether you diagnosed the barrier or just added a task — with pedagogically defensible wrong answers.
Differentiation training teaches frameworks; the classroom demands split-second diagnosis. Peer tutoring, extra time and checklists are all legitimate tools — which is exactly why they make good wrong answers.
One teaching day, four moments with seven students. For each student the teacher first names the barrier (speed, misconception, access or face, 1 point each), then chooses one move for the moment (2/1/0). Pass = 11/15 with at least 5 of 7 barriers named and no public exposure of a failed test. The 3D classroom shows only observable behaviour (no labels); postures and the lesson clock respond to the move.
The moments are composites, not observed lessons. The barrier taxonomy simplifies differentiation research for a training artifact; mentor debrief remains the real learning venue.
Part of I Wayan Usada's learning-design portfolio · all clients and scenarios are fictional composites built from realistic domain patterns · drafted with AI assistance and fully rewritten, fact-checked and owned by a human.
action-map.md — Action map — the behaviors the artifact must produce, traced to the business goalstoryboard.md — Text-based storyboard — the scene plan written before buildvisual-mockups.md — Visual mockups & style guide — mood, type, key screens, component decisions