Lessons below address this concept: Background extinctions are a normal occurrence.
Found 5 records.

Browse concepts for grades: K-2 | 3-5 | 6-8 | 9-12

 
Lesson Title (Description) Grade Level Lesson Type
Clipbirds
Students learn about variation, reproductive isolation, natural selection, and adaptation through this version of the bird beak activity.
9-12 Classroom activity
Evo in the news: Where species come from
Lush tropical ecosystems house many times more species than temperate or Arctic regions. This news brief from November 2006 discusses the evolutionary explanation for this diversity trend and reveals why threats to tropical ecosystems may threaten diversity on a global scale.
9-12 Article
How to survive a mass extinction: The work of David Jablonski
Through detailed analysis of patterns in the fossil record, scientist David Jablonski reconstructs the rules that helped dictate who lived and died in past mass extinctions. This research profile describes his surprising discoveries and their disturbing implications for the biodiversity crisis today.
9-12 Article
Modeling Modes of Evolution- PuncEq & Gradualism
Students learn the differences between “gradualism” and “punctuated equilibrium” by manipulating two sets of simulated fossils (Caminalcules).
9-12 Classroom activity
Visualizing life on Earth: Data interpretation in evolution
This web-based module leads students through an exploration of the patterns in the diversity of life across planet Earth. Students are scaffolded as they practice data interpretation and scientific reasoning skills.
9-12 Web activity
 


Search · Site Index · Navigation · Copyright · Credits · Contact
Understanding Evolution For Teachers Home · Understanding Evolution Home

Read how others have recognized the Understanding Evolution website

Spanish translation of Understanding Evolution For Teachers from the Spanish Society of Evolutionary Biology.