The Law of Conservation of Mass Scaffolded Phenomena-Based Lesson: Burning Steel Wool in a Sealed Flask Teacher Discussion Guide | Middle School Physical Science | Grades 6–8

This is the teacher discussion guide, with lesson flow, facilitation questions, anticipated student ideas and model explanations for leading the class discussion for the Scaffolded Phenomena-Based Lesson in the Middle School Physical Science (grades 6–8) chapter The Law of Conservation of Mass, built around the phenomenon Burning Steel Wool in a Sealed Flask. This scaffolded version adds sentence frames and extra supports for students who need them. It is sold separately from the other two parts of the set.

Complete the set: The Law of Conservation of Mass Scaffolded Phenomena-Based Lesson: Burning Steel Wool in a Sealed Flask Presentation; The Law of Conservation of Mass Scaffolded Phenomena-Based Lesson: Burning Steel Wool in a Sealed Flask Student Response Sheet. Original version: The Law of Conservation of Mass Phenomena-Based Lesson: Burning Steel Wool in a Sealed Flask Teacher Discussion Guide.

Sections: Part 1: Science Goals For Today; NGSS Part; What Students Do Today; Part 2: Central Mystery And The Question; Part 3: Class Talk Prompts; Talk Move; What To Ask; Common Guess. Sample item: “The scale reads 248.50 grams the whole time. Why?”

What's inside: SCAFFOLDED Teacher Discussion Guide (editable .doc + PDF, about 986 words, 3 pages); answer key / model answers for the teacher.

Standards: NGSS Middle School Physical Science (MS-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 Middle School Physical Science, grades 6–8.

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.