The Cardiovascular System Phenomena-Based Lesson: The 10–30 ms Window: Why a Baseball Impact Can Instantly Stop a Healthy Heart Teacher Discussion Guide | Anatomy & Physiology | Grades 9–12

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 high school Anatomy & Physiology (grades 9–12) chapter The Cardiovascular System, built around the phenomenon The 10–30 ms Window: Why a Baseball Impact Can Instantly Stop a Healthy Heart. It is sold separately from the other two parts of the set.

Complete the set: The Cardiovascular System Phenomena-Based Lesson: The 10–30 ms Window: Why a Baseball Impact Can Instantly Stop a Healthy Heart Presentation; The Cardiovascular System Phenomena-Based Lesson: The 10–30 ms Window: Why a Baseball Impact Can Instantly Stop a Healthy Heart Student Response Sheet. Scaffolded version: The Cardiovascular System Scaffolded Phenomena-Based Lesson: The 10–30 ms Window: Why a Baseball Impact Can Instantly Stop a Healthy Heart 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: “• Tier 1 (Observation): What four precise physical and timing variables must align simultaneously for a blunt chest impact to trigger commotio cordis?”

What's inside: Teacher Discussion Guide (editable .doc + PDF, about 2,688 words, 9 pages); answer key / model answers for the teacher.

Standards: HS-LS1-2 — Develop and use a model to illustrate the hierarchical organization of interacting systems that provide specific functions within multicellular organisms. HS-LS1-3 — Plan and conduct an investigation to provide evidence that feedback mechanisms maintain homeostasis.

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 high school Anatomy & Physiology, 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.