Reaction Mechanisms & Catalysts Phenomena-Based Lesson: Catalytic Destruction of One Hundred Thousand Ozone Molecules by a Single Stratospheric Chlorine Radical Teacher Discussion Guide | Chemistry II | Grades 9–12
Reaction Mechanisms & Catalysts Phenomena-Based Lesson: Catalytic Destruction of One Hundred Thousand Ozone Molecules by a Single Stratospheric Chlorine Radical Teacher Discussion Guide | Chemistry II | Grades 9–12
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This is the teacher discussion guide, with lesson flow, facilitation questions, anticipated student ideas and model explanations for leading the class discussion for the Phenomena-Based Lesson in the Chemistry II (grades 9–12) chapter Reaction Mechanisms & Catalysts, built around the phenomenon Catalytic Destruction of One Hundred Thousand Ozone Molecules by a Single Stratospheric Chlorine Radical. It is sold separately from the other two parts of the set.
Complete the set: Reaction Mechanisms & Catalysts Phenomena-Based Lesson: Catalytic Destruction of One Hundred Thousand Ozone Molecules by a Single Stratospheric Chlorine Radical Presentation; Reaction Mechanisms & Catalysts Phenomena-Based Lesson: Catalytic Destruction of One Hundred Thousand Ozone Molecules by a Single Stratospheric Chlorine Radical Student Response Sheet. Scaffolded version: Reaction Mechanisms & Catalysts Scaffolded Phenomena-Based Lesson: Catalytic Destruction of One Hundred Thousand Ozone Molecules by a Single Stratospheric Chlorine Radical Teacher Discussion Guide.
Sections: NGSS Dimension; Specific Performance Expectation & Dimensional Alignment; Slides; Segment; Focus Activity & Instructional Goal; Anchoring Driving Question (student Sensemaking):; Talk Move Category; Teacher Facilitation Prompt & Sensemaking Strategy. Sample item: “How can a single catalytic chemical atom tear through hundreds of thousands of stable molecules without ever being consumed or destroyed itself?”
What's inside: Teacher Discussion Guide (editable .docx + PDF, about 2,030 words, 7 pages); answer key / model answers for the teacher.
Standards: NGSS High School Physical Science (HS-PS) disciplinary core ideas and the science practices of analyzing data and constructing explanations.
Resource type: Phenomena-Based Lesson – Teacher Discussion Guide. Format: editable Microsoft Word file plus a ready-to-print PDF.
Classroom use: Open with the phenomenon slide show, let students record ideas on the response sheet, and lead the discussion with the teacher guide. Built for Chemistry II, grades 9–12.
Format note: These files are delivered in Microsoft Office formats (Word and/or PowerPoint). If you open a worksheet that includes tables in Apple Pages or another non-Microsoft app, table formatting may not display correctly. For best results, use Microsoft Word or PowerPoint (or upload the file to Google Docs). If you run into any formatting issues, contact us and we can send a PDF version.