Two-Dimensional Geometric Primitives Phenomena-Based Lesson: High-Torque Hex Fastener Stripping & Tangent Pulley Drive Geometry Presentation | Computer Aided Drafting I | Grades 9–12

This is the student-facing slide presentation that introduces the phenomenon, walks the class through observations and driving questions, and frames the evidence students will use for the Phenomena-Based Lesson in the Computer Aided Drafting I (grades 9–12) chapter Two-Dimensional Geometric Primitives, built around the phenomenon High-Torque Hex Fastener Stripping & Tangent Pulley Drive Geometry. It is sold separately from the other two parts of the set.

Complete the set: Two-Dimensional Geometric Primitives Phenomena-Based Lesson: High-Torque Hex Fastener Stripping & Tangent Pulley Drive Geometry Teacher Discussion Guide; Two-Dimensional Geometric Primitives Phenomena-Based Lesson: High-Torque Hex Fastener Stripping & Tangent Pulley Drive Geometry Student Response Sheet. Scaffolded version: Two-Dimensional Geometric Primitives Scaffolded Phenomena-Based Lesson: High-Torque Hex Fastener Stripping & Tangent Pulley Drive Geometry Presentation.

Sections: Dimension / Standard; What Students Do; Iteea Stel; Slides; Segment; Focus Activity & Instructional Goal; Anchoring Driving Question (student Sensemaking):; Teacher Script (read Aloud To Introduce Phenomenon):. Sample item: “• Tier 1 Observation: A hexagon is drawn with a 0.750-inch radius, once Inscribed (corners on the circle) and once Circumscribed (flats touching the circle). Why is the inscribed one smaller across it”

What's inside: Student Slide Show (editable .pptx + PDF, 23 slides); answer key / model answers for the teacher.

Standards: Aligned to ITEEA Standards for Technological and Engineering Literacy for Computer Aided Drafting I, with embedded engineering design practices and career-readiness skills.

Resource type: Phenomena-Based Lesson – Presentation. Format: editable Microsoft PowerPoint 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 Computer Aided Drafting I, 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.