Engine Components & Systems Phenomena-Based Lesson: Piston Thermal Expansion and Cylinder Wall Scuffing Teacher Discussion Guide | Small Gas Engine | 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 Small Gas Engine (grades 9–12) chapter Engine Components & Systems, built around the phenomenon Piston Thermal Expansion and Cylinder Wall Scuffing. It is sold separately from the other two parts of the set.

• What's inside: Teacher Discussion Guide (editable .docx + PDF, about 1,686 words, 5 pages); answer key / model answers for the teacher.
• 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 Small Gas Engine, grades 9–12.

Sample question“Why is a small engine piston manufactured deliberately out-of-round and tapered, being smaller at the crown than at the skirt when cold?”

Complete the set: Engine Components & Systems Phenomena-Based Lesson: Piston Thermal Expansion and Cylinder Wall Scuffing Presentation; Engine Components & Systems Phenomena-Based Lesson: Piston Thermal Expansion and Cylinder Wall Scuffing Student Response Sheet. Scaffolded version: Engine Components & Systems Scaffolded Phenomena-Based Lesson: Piston Thermal Expansion and Cylinder Wall Scuffing Teacher Discussion Guide.