Ecological Demographics Phenomena-Based Lesson: The Prime Number Invasion: Trillions of Cicadas Defeating Every Predator on Earth Presentation | Honors Biology | 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 Honors Biology (grades 9–12) chapter Ecological Demographics, built around the phenomenon The Prime Number Invasion: Trillions of Cicadas Defeating Every Predator on Earth. It is sold separately from the other two parts of the set.

Complete the set: Ecological Demographics Phenomena-Based Lesson: The Prime Number Invasion: Trillions of Cicadas Defeating Every Predator on Earth Teacher Discussion Guide; Ecological Demographics Phenomena-Based Lesson: The Prime Number Invasion: Trillions of Cicadas Defeating Every Predator on Earth Student Response Sheet. Scaffolded version: Ecological Demographics Scaffolded Phenomena-Based Lesson: The Prime Number Invasion: Trillions of Cicadas Defeating Every Predator on Earth 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 physical emergence density (insects per acre) and acoustic volume (decibels) characterize a periodical cicada brood emergence?”

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 Honors Biology, 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.