Truss Bridges & Structural Efficiency Phenomena-Based Lesson: The 18 N Collapsing Rectangle vs. The 360 N Pratt Truss & Euler's 1/L² Buckling Trap Presentation | Introduction to Technology and Engineering | 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 Introduction to Technology and Engineering (grades 9–12) chapter Truss Bridges & Structural Efficiency, built around the phenomenon The 18 N Collapsing Rectangle vs. The 360 N Pratt Truss & Euler's 1/L² Buckling Trap. It is sold separately from the other two parts of the set.

Complete the set: Truss Bridges & Structural Efficiency Phenomena-Based Lesson: The 18 N Collapsing Rectangle vs. The 360 N Pratt Truss & Euler's 1/L² Buckling Trap Teacher Discussion Guide; Truss Bridges & Structural Efficiency Phenomena-Based Lesson: The 18 N Collapsing Rectangle vs. The 360 N Pratt Truss & Euler's 1/L² Buckling Trap Student Response Sheet.

Sections: Dimension / Standard; Performance Expectation & Practices Alignment; Slides; Segment; Focus Activity & Instructional Goal; Anchoring Driving Question (student Sensemaking):; Teacher Script (read Aloud To Introduce Phenomenon):; Talk Move Category. Sample item: “• A Pratt Truss places its longer diagonal members in pure ____________ (which cannot buckle) and its shorter vertical posts in ____________.”

What's inside: Student Slide Show (editable .pptx + PDF, 22 slides).

Standards: Aligned to ITEEA Standards for Technological and Engineering Literacy for Introduction to Technology and Engineering, 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 Introduction to Technology and Engineering, 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.