{"schema_version":"task-form-representation.payload.v1","representation":{"schema_version":"task-form-representation.v1","task_form_ref":"task-form.logic.truth-card-verifier.v1","public_slug":"truth-card-verifier","owning_skill_refs":["logic.proof-counterexample.artifacts"],"primary_family_ref":"module-family.logic.constraint-deduction-combinatorics.v1","pattern_cluster_ref":"pattern-cluster.logic.proof-counterexample-truth-contradiction.v1","task_pattern_ref":"task-pattern.logic.truth-status-visible-state.v1","public_title":"Truth card verifier","teacher_summary":"Truth card verifier asks children to mark a visible statement as true, false, or not determined and choose evidence when required.","teacher_purpose_md":"Mark a visible statement as true, false, or not determined from the shown state.","child_action_public":"Mark a visible statement as true, false, or not determined and choose evidence when required.","answer_affordance_public":"Complete the truth card verifier 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role: contradiction marker.","Story object role: visible state board."],"retrieval":{"aliases":["Truth card verifier","task-form.logic.truth-card-verifier.v1","truth_false_unknown_with_evidence","statement_card","visible_state","truth_value_chips"],"teacher_questions":["What does Truth card verifier mean?","How does Truth card verifier adapt for my child?","Can I see an example of Truth card verifier?"],"keywords":["truth card verifier","truth_false_unknown_with_evidence","logic.proof-counterexample.artifacts"],"short_answer_public":"Truth card verifier asks children to mark a visible statement as true, false, or not determined and choose evidence when required.","canonical_links":[{"label":"Truth card verifier","url":"#taskform-truth-card-verifier"}],"safe_to_quote_snippets":["Truth card verifier asks children to mark a visible statement as true, false, or not determined and choose evidence when 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and counterexample artifacts builds logic, constraint, deduction, and combinatorics through visual tasks, examples, and next-step routes.","teacher_explanation_md":"Produce a visible example, counterexample, or short proof artifact that justifies or rejects a mathematical claim.","child_surface_summary_md":"Children may meet this skill through task formats such as Clue-card candidate choice, Candidate elimination markboard, Violated-clue marker, Ambiguity repair clue choice, Minimal clue set choice, Grid consistency repair, List missing or duplicate repair, Parity pairing proof choice, Invariant move legal-illegal mark, Truth card verifier, Proof card evidence choice, Counterexample card build-select, Contradiction clue mark, Pigeonhole box guarantee choice, Invariant game challenge choice.","common_mistake_tags":["Treats one confirming example as proof of a universal claim.","Gives a counterexample that does not actually satisfy the claim conditions."],"hint_reveal_summary_md":"Hints keep the child oriented to the visible structure; reveals show the path without counting as independent evidence.","adaptation_summary_md":"Fresh independent work can move the child toward Core, Transfer, or Challenge routes; help use or confusion keeps support visible.","route_variant_refs":["support_repair","core","stretch_transfer","challenge_ready"],"age_band_refs":["age_6_7","age_8_9","age_10_11"],"practice_focus_refs":["practice-focus.balanced.v1","practice-focus.word-problems.v1"],"standards_refs":[],"school_program_refs":[],"challenge_refs":["challenge.logic.proof-counterexample.artifacts"],"story_fit_tags":["story beats with visible logic state, manipulable evidence, and a bounded child 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