{"slug":"academy/engineering_making/en/lesson/engineering-tradeoff-argument","route":"/library/academy/engineering_making/en/lesson/engineering-tradeoff-argument","title":"Defending a Design Choice With Evidence and Tradeoffs","surface":"/library/academy/engineering_making","audience":"academy","subject":"engineering_making","locale":"en","source_repo":"koydo-app","source_path":"scripts/curriculum-authoring","route_source":"library_fallback","candidate_canonical_target_web":"/library/academy/engineering_making/en/lesson/engineering-tradeoff-argument","license":"ai-generated-koydo","attribution":null,"ai_provenance":{"model":"claude-opus-4-8","reviewed_at":"2026-06-24T19:15:45.453Z","reviewer_persona":"koydo-curriculum-expert-loop"},"provenance_blockers":["attribution_missing"],"content_types":["lesson","lesson_objectives","media_scene","drill","practice_set","quiz","feedback","character","citation","concept_map","progress","resume","review","remediation","next_step_path"],"normalized_content_types":["character","citation","concept_map","drill","feedback","lesson","media","next_step","practice_set","progress","quiz","remediation","resume","review"],"lesson_roles":["concept","guided_practice","knowledge_check","progress_summary","remediation","review"],"primary_lesson_role":"concept","objectives":["Explain what distinguishes an engineering argument from a preference or opinion.","Identify the three required components of a sound engineering argument: data, constraints, and acknowledged tradeoffs.","Compare two design alternatives by evaluating quantitative data against stated criteria and constraints.","Construct a written engineering argument that justifies a specific design choice using evidence.","Predict how changing one constraint would shift which design alternative is optimal."],"activity_prompt":"Drag each evidence card into its correct slot — Data, Constraint, or Tradeoff — then use the cards in those slots to complete the engineering argument sentence for the bridge deck scenario.","assessment_count":3,"assessment_shape":{"objective_count":5,"activity_present":true,"activity_prompt_present":true,"quiz_item_count":3,"quiz_items_with_answer_key":3,"quiz_items_with_explanation":3,"reward_present":true},"completion_criteria":["Review objectives and instruction","Complete the activity with manual learner confirmation","Answer every understanding-check item","Show completion feedback and reward only after the learner finishes the check"],"route_health":{"route":"/library/academy/engineering_making/en/lesson/engineering-tradeoff-argument","route_source":"library_fallback","candidate_canonical_target_web":"/library/academy/engineering_making/en/lesson/engineering-tradeoff-argument","local_route_resolvable":true,"sequence_links_resolvable":true,"owner_canonical_review_required":true,"canonical_route_write_allowed":false,"production_discoverability_evidence_present":false,"production_discoverability_claim_allowed":false,"evidence_scope":"Local route syntax and previous/next link check only; owner canonical-route review and production crawl/index evidence are still required before discoverability claims."},"context_route":"/api/library/ai-help-context?slug=academy%2Fengineering_making%2Fen%2Flesson%2Fengineering-tradeoff-argument","grounding":["registry:academy/engineering_making/en/lesson/engineering-tradeoff-argument","source:koydo-app/scripts/curriculum-authoring","sha1:9b93044ec878d01810b9dff9d9bea62442d60dc5","title:Defending a Design Choice With Evidence and Tradeoffs","concept:Analysis and Modeling","concept:HS-ETS1-3","concept:engineering argumentation","concept:design tradeoffs","concept:constraints and criteria","concept:evidence-based reasoning"],"privacy":["Do not send raw child free text without consent","Use source excerpts and non-identifying progress state only","Asset is not registry-gated"],"age_guardrails":["Adapt tone and examples for the academy audience.","Do not request sensitive personal data; use non-identifying learner progress only.","Keep help available only for this active, ungated asset context."],"measurement":["Log AI help usage by surface and asset slug","Evaluate answer quality against source-grounded rubric before production-readiness claims","Tie remediation prompts to completion, retry, or review outcomes"],"enabled":true,"blocked_reason":null,"tutor_prompt":"You are the KOYDO lesson tutor for this asset. Answer only from the source-grounded context listed in grounding, objectives, activity_prompt, and completion_criteria. When the source context is missing or ambiguous, say what evidence is missing instead of guessing. Do not request personal data, raw child free text, payment details, or consent decisions. Adapt explanations to the audience age tier and preserve KOYDO curriculum intent, citations, accessibility, and safety guardrails. Tie help to the learning loop: prerequisite review, current step, retry, completion feedback, remediation, review, or next route. Use assessment_shape, route_health, progress_policy, production_gate_policy, ai_eval_partnership, and real_ai_eval_evidence only as local deterministic constraints; do not treat them as production telemetry, mastery, discoverability, launch, release, or model-eval evidence. 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