Classification & Phylogeny Phenomena-Based Lesson: Identical Twins Separated by 160 Million Years: The Gliding Mammal Paradox Presentation | Biology II | 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 Biology II (grades 9–12) chapter Classification & Phylogeny, built around the phenomenon Identical Twins Separated by 160 Million Years: The Gliding Mammal Paradox. It is sold separately from the other two parts of the set.

Complete the set: Classification & Phylogeny Phenomena-Based Lesson: Identical Twins Separated by 160 Million Years: The Gliding Mammal Paradox Teacher Discussion Guide; Classification & Phylogeny Phenomena-Based Lesson: Identical Twins Separated by 160 Million Years: The Gliding Mammal Paradox Student Response Sheet. Scaffolded version: Classification & Phylogeny Scaffolded Phenomena-Based Lesson: Identical Twins Separated by 160 Million Years: The Gliding Mammal Paradox Presentation.

Sections: NGSS Dimension; Specific Performance Expectation & Dimensional Alignment; Slides; Segment; Focus Activity & Instructional Goal; Anchoring Driving Question (student Sensemaking):; Teacher Script (read Aloud To Introduce Phenomenon):; Talk Move Category. Sample item: “• Tier 1 (Observation): What specific external anatomical structures are shared between the sugar glider and flying squirrel, and what fundamental reproductive structures divide them?”

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

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 – 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 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.