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https://theirwinsystem.com/resource-library/p/micro-mysteries-six-five-minute-classroom-reasoning-challenges-single-school-licence monthly 0.5 2026-07-20 https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/50c5dbd0-e241-4aee-a7b9-c79754cb3dfb/Micro_Mysteries_The_Puddle_by_the_Door_v1.1.jpg Resource Library - Micro Mysteries — Six Five-Minute Classroom Reasoning Challenges | Single-School Licence - Preview of The Puddle by the Door, an illustrated Micro Mystery inviting learners to distinguish visible clues from possible explanations. https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/d4b8e3b1-d211-4702-9a64-cec657e6765e/Micro_Mysteries_The_Silent_Clock_v1.1.jpg Resource Library - Micro Mysteries — Six Five-Minute Classroom Reasoning Challenges | Single-School Licence - Preview of The Silent Clock, an illustrated Micro Mystery inviting learners to examine incomplete clues and consider several explanations. https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/15c9d341-c797-42d9-824c-fc5b3cd0ba35/Micro_Mysteries_The_Empty_Feeder_v1.1.jpg Resource Library - Micro Mysteries — Six Five-Minute Classroom Reasoning Challenges | Single-School Licence - Preview of The Empty Feeder, an illustrated Micro Mystery about observation, competing possibilities, uncertainty, and evidence. https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/6454c076-fbb9-4d20-92c9-eedb477704d8/Micro_Mysteries_Teacher_Guide_v1.1.jpg Resource Library - Micro Mysteries — Six Five-Minute Classroom Reasoning Challenges | Single-School Licence - Preview of the Micro Mysteries Teacher Guide, explaining the five-minute classroom routine and exercise-book recording headings. https://theirwinsystem.com/resource-library/p/what-else-could-be-going-on-assessment-collection-individual-educator-licence monthly 0.5 2026-07-20 https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/85eba74a-336b-4c0e-91f3-2c66c7f87c4d/What_Else_Assessment_Collection_Main.png Resource Library - What Else Could Be Going On? — Assessment Collection | Individual Educator Licence - Cover of What Else Could Be Going On? — Assessment Collection, a classroom assessment system for making student reasoning visible. https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/cfc3e42b-0d41-420f-b134-d26ec064f32f/What_Else_Student_Reasoning_Journal.png Resource Library - What Else Could Be Going On? — Assessment Collection | Individual Educator Licence - Preview of the Student Reasoning Journal from What Else Could Be Going On? — Assessment Collection. https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/436fe018-e7e6-4758-96a2-fe21dda2e49d/What_Else_Teacher_Observation_Notes.png Resource Library - What Else Could Be Going On? — Assessment Collection | Individual Educator Licence - Preview of the Teacher Observation Notes for recording, interpreting, and responding to student reasoning. https://theirwinsystem.com/resource-library/p/what-else-assessment-collection-single-school monthly 0.5 2026-07-20 https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/85eba74a-336b-4c0e-91f3-2c66c7f87c4d/What_Else_Assessment_Collection_Main.png Resource Library - What Else Could Be Going On? — Assessment Collection | Single-School Licence - Cover of What Else Could Be Going On? — Assessment Collection, a classroom assessment system for making student reasoning visible. https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/cfc3e42b-0d41-420f-b134-d26ec064f32f/What_Else_Student_Reasoning_Journal.png Resource Library - What Else Could Be Going On? — Assessment Collection | Single-School Licence - Preview of the Student Reasoning Journal from What Else Could Be Going On? — Assessment Collection. https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/436fe018-e7e6-4758-96a2-fe21dda2e49d/What_Else_Teacher_Observation_Notes.png Resource Library - What Else Could Be Going On? — Assessment Collection | Single-School Licence - Preview of the Teacher Observation Notes for recording, interpreting, and responding to student reasoning. https://theirwinsystem.com/resource-library/p/what-is-a-system monthly 0.5 2026-07-20 https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/a2c835ac-3b6b-40b2-8679-fc854ea3164b/what-is-a-system-student-task-map-a-system.jpg Resource Library - What Is a System? - Preview of the Map a System student task, helping learners identify parts, connections, roles, boundaries, and effects within a system. https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/3f012fed-4fb4-4a9d-87c2-b17efde11e08/what-is-a-system-student-thinking-record.jpg Resource Library - What Is a System? - Preview of the What Is a System? student thinking record for capturing observations about parts, relationships, change, and influence. https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/7e8cf551-1447-4dfa-a766-f5b9096f2856/what-is-a-system-cover.jpg Resource Library - What Is a System? - Cover of What Is a System?, a free classroom resource introducing systems thinking through parts, connections, roles, boundaries, and change. https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/5e830fe2-92b4-4b45-aed0-e39b4866ceec/what-is-a-system-exit-tickets.jpg Resource Library - What Is a System? - Preview of the What Is a System? exit tickets, helping learners reflect on relationships, effects, and changes within a system. https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/afb66763-6dd4-47d0-b91f-c9c43184f237/what-is-a-system-first-investigation.jpg Resource Library - What Is a System? - Preview of the first What Is a System? investigation, introducing the question: What is affecting what? https://theirwinsystem.com/resource-library/p/the-borderline-case monthly 0.5 2026-07-20 https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/dec7556d-1800-4812-911f-b702cc8332f9/challenge_07_the_borderline_case_cover_p01.jpg Resource Library - #7 The Borderline Case Individual Educator Licence - Cover of The Borderline Case, a classroom reasoning challenge about categories, criteria, exceptions, and judgement. https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/30ad47f4-7556-4e0d-8922-927e2ec5c82c/challenge_07_the_borderline_case_hook_p07.jpg Resource Library - #7 The Borderline Case Individual Educator Licence - Preview of the opening classification prompt from The Borderline Case, inviting students to decide which category something belongs in. https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/55a1e4f1-63ec-41b9-9889-a9ea8ba16c2b/challenge_07_the_borderline_case_key_rule_testing_p12.jpg Resource Library - #7 The Borderline Case Individual Educator Licence - Preview of the rule-testing page from The Borderline Case, helping students examine criteria, exceptions, and possible category changes. https://theirwinsystem.com/resource-library/p/the-one-sided-story monthly 0.5 2026-07-20 https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/680ca5ac-0083-4d78-99bf-8bdbe753aaf9/challenge_06_the_one_sided_story_cover_p01.jpg Resource Library - #6 The One-Sided Story Individual Educator Licence - Cover of The One-Sided Story, a classroom reasoning challenge about perspective, incomplete accounts, evidence, and judgement. https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/5666a8d9-f886-4637-91b7-e2252b485850/challenge_06_the_one_sided_story_hook_p07.jpg Resource Library - #6 The One-Sided Story Individual Educator Licence - Preview of the opening account from The One-Sided Story, inviting students to make an initial judgement from one perspective. https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/25687c31-5d53-4e07-a189-37a29392180e/challenge_06_the_one_sided_story_key_new_perspectives_p11.jpg Resource Library - #6 The One-Sided Story Individual Educator Licence - Preview of new perspectives from The One-Sided Story, helping students reconsider their judgement as additional accounts emerge. https://theirwinsystem.com/resource-library/p/the-pattern-trap monthly 0.5 2026-07-20 https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/d68523cd-e99d-4d2b-b1f5-4754c101f334/challenge_05_the_pattern_trap_cover_p01.jpg Resource Library - #5 The Pattern Trap Individual Educator Licence - Cover of The Pattern Trap, a classroom reasoning challenge about patterns, causes, alternative explanations, and exceptions. https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/dce6c123-7127-4161-90bd-142c2cb69c49/challenge_05_the_pattern_trap_key_exceptions_p12.jpg Resource Library - #5 The Pattern Trap Individual Educator Licence - Preview of an exception-testing page from The Pattern Trap, helping students check whether a proposed pattern or rule still holds. https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/81573418-3187-4b6c-8e9d-545b6232c12d/challenge_05_the_pattern_trap_hook_p07.jpg Resource Library - #5 The Pattern Trap Individual Educator Licence - Preview of the opening pattern prompt from The Pattern Trap, inviting students to notice a pattern and propose an initial explanation. https://theirwinsystem.com/resource-library/p/the-viral-claim monthly 0.5 2026-07-20 https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/83df82ec-742f-4d39-8b44-81beda2bd0e7/challenge_04_the_viral_claim_cover_p01.jpg Resource Library - #4 The Viral Claim Individual Educator Licence - Cover of The Viral Claim, a classroom reasoning challenge about claims, sources, context, evidence, and confidence. https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/9bbb5335-1c38-4034-950c-73351f671330/challenge_04_the_viral_claim_hook_p07.jpg Resource Library - #4 The Viral Claim Individual Educator Licence - Preview of the opening claim from The Viral Claim, inviting students to record their first reaction and level of confidence. https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/80e050ee-96c5-4709-b83b-7dc980944eae/challenge_04_the_viral_claim_key_source_check_p11.jpg Resource Library - #4 The Viral Claim Individual Educator Licence - Preview of the source-checking page from The Viral Claim, helping students examine credibility, context, and supporting evidence. https://theirwinsystem.com/resource-library/p/the-mystery-file monthly 0.5 2026-07-20 https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/606bc0f7-5e57-4592-b5a9-0142059e7420/challenge_03_the_mystery_file_cover_p01.jpg Resource Library - #3 The Mystery File Individual Educator Licence - Cover of The Mystery File, a classroom reasoning challenge about evidence, assumptions, source reliability, and uncertainty. https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/f6daec5f-2a01-4ed4-a0ee-a05adf9e81cc/challenge_03_the_mystery_file_hook_p07.jpg Resource Library - #3 The Mystery File Individual Educator Licence - Preview of the opening mystery prompt, inviting students to form an initial conclusion from limited evidence. https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/40f4b180-7327-4f19-a8d7-e92a584d7c34/challenge_03_the_mystery_file_key_evidence_cards_p08.jpg Resource Library - #3 The Mystery File Individual Educator Licence - Preview of evidence cards from The Mystery File, used to compare clues, question assumptions, and revise an initial conclusion. https://theirwinsystem.com/resource-library/p/who-deserves-it-most monthly 0.5 2026-07-20 https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/d6934c39-c622-4277-acc4-bb22c0091ba8/challenge_02_who_deserves_it_most_cover_p01.jpg Resource Library - #2 Who Deserves It Most? Individual Educator Licence - Cover of Who Deserves It Most?, a classroom reasoning challenge about difficult choices, competing evidence, values, and criteria. https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/9050be0f-24a4-4993-ab6d-8cdf09e0c7a1/challenge_02_who_deserves_it_most_hook_p07.jpg Resource Library - #2 Who Deserves It Most? Individual Educator Licence - Preview of the opening scenario from Who Deserves It Most?, asking students to compare candidates and make an initial decision. https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/b8f36de8-d789-46b6-9f19-235e6d1b875d/challenge_02_who_deserves_it_most_key_part4_p11.jpg Resource Library - #2 Who Deserves It Most? Individual Educator Licence - Preview of a key reasoning page from Who Deserves It Most?, helping students test the criteria and rules behind their decision. https://theirwinsystem.com/resource-library/p/20-minute-thinking-challenge monthly 0.5 2026-07-20 https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/5b1bbd24-6666-4555-b8b6-cd6737bb0453/challenge_01_20_minute_thinking_cover_p01.jpg Resource Library - #1 The 20-Minute Thinking Challenge | Individual Educator Licence - Cover of The 20-Minute Thinking Challenge, a classroom reasoning routine for observing how thinking changes through evidence and reflection. https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/ab548a51-77e4-4d1a-8ed3-9b1d39abd032/challenge_01_20_minute_thinking_hook_p07.jpg Resource Library - #1 The 20-Minute Thinking Challenge | Individual Educator Licence - Preview of the opening classroom prompt from The 20-Minute Thinking Challenge, inviting students to record their first response. https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/6088f86d-8997-4a85-b504-e6be85460d18/challenge_01_20_minute_thinking_key_part4_p11.jpg Resource Library - #1 The 20-Minute Thinking Challenge | Individual Educator Licence - Preview of a key reasoning page helping students reconsider evidence, confidence, and how their thinking has changed. https://theirwinsystem.com/resource-library/p/what-else-could-be-going-on-the-irwin-system monthly 0.5 2026-07-21 https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/a44ce71a-4f8a-4e1d-b947-297e06d72fff/irwin_teacher_starter_pack_cover.jpg Resource Library - What Else Could Be Going On? - Cover of What Else Could Be Going On?, a free Teacher Starter Pack introducing The Irwin System™ reasoning pathway. https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/b7a074c4-e095-45c8-8dba-0a6a6a847ada/01_seven_move_pathway.jpg Resource Library - What Else Could Be Going On? - The Irwin System™ seven-move reasoning pathway: Notice, Think, What Else?, Clues, How Sure?, Learn, and Notice Again. https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/c57b6a4b-5307-4cdd-be1e-652fb7260f36/02_quick_start_guide.jpg Resource Library - What Else Could Be Going On? - Preview of the Teacher Starter Pack Quick Start Guide for introducing the reasoning pathway through one short classroom discussion. https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/c77bd451-bbc2-46ae-b814-3ea34b460ba6/03_student_thinking_sheet.jpg Resource Library - What Else Could Be Going On? - Preview of the Student Thinking Sheet for recording observations, possible explanations, clues, confidence, learning, and return. https://theirwinsystem.com/archive daily 0.75 2026-07-29 https://theirwinsystem.com/archive/artefact-collection monthly 0.5 2026-07-29 https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/2e103425-ab2e-49af-9574-58ddf20a8271/Irwin+Artefact+Collection+Founding+Observation+Plates+Volume+I+cover https://theirwinsystem.com/archive/research-foundations monthly 0.5 2026-07-20 https://theirwinsystem.com/archive/irwin-lexicon monthly 0.5 2026-07-21 https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/18594241-139d-481a-831e-1dc6e0ac3efc/cover_irwin_lexicon_v1_1_dictionary_register_web.png https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/b9f630ae-96d2-4d8e-93bd-706cc3d01da1/cover_irwin_lexicon_v1_1_origins_web.png https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/62567145-7caa-42a8-b1b7-bd2f7742fb7f/cover_irwin_lexicon_v1_1_characters_web.png https://images.squarespace-cdn.com/content/v1/6a2f30aa661eaa1ff6202ca4/f69ca893-4676-478f-9a8b-0a4b576fa937/cover_irwin_lexicon_v1_1_relationship_maps_web.png 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