DNA Structure & Replication Scaffolded Phenomena-Based Lesson: The Aging of Dolly and the Immortality of Hydra: The Replicative Clock of DNA Teacher Discussion Guide | Biology II | 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 Scaffolded Phenomena-Based Lesson in the Biology II (grades 9–12) chapter DNA Structure & Replication, built around the phenomenon The Aging of Dolly and the Immortality of Hydra: The Replicative Clock of DNA. 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: DNA Structure & Replication Scaffolded Phenomena-Based Lesson: The Aging of Dolly and the Immortality of Hydra: The Replicative Clock of DNA Presentation; DNA Structure & Replication Scaffolded Phenomena-Based Lesson: The Aging of Dolly and the Immortality of Hydra: The Replicative Clock of DNA Student Response Sheet. Original version: DNA Structure & Replication Phenomena-Based Lesson: The Aging of Dolly and the Immortality of Hydra: The Replicative Clock of DNA Teacher Discussion Guide.

Sections: Section 1: Three-dimensional Learning Alignment (ngss); NGSS Dimension; Scaffolded Three-dimensional Learning Goal; Section 3: Scaffolded Science Talk Moves Matrix; Scaffolded Talk Move; Verbatim Facilitation Prompt & Talk Goal; Everyday Student Misconception (flawed Claim); Scientific Evidence & Intuitive Correction. Sample item: “Linear chromosomes lose terminal base pairs during each cell division because ____________.”

What's inside: SCAFFOLDED Teacher Discussion Guide (editable .docx + PDF, about 1,464 words, 4 pages); answer key / model answers for the teacher.

Standards: NGSS High School Life Science (HS-LS) 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 Biology II, 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.