Illustrative Mathematics
Accuracy of Carbon 14 Dating II
The scientific issue of carbon-14 dating and exponential decay gets a statistics-based treatment in this problem. The class starts with a basic investigation of carbon content, but then branches out to questions of accuracy and...
Curated OER
The Gopher Tortoise
Can you believe the gopher tortoise was around when the dinosaurs were walking the Earth. Learn all about this creature that is one of Florida's most popular reptiles. Hands-on-activities and a glossary full of scientific terms...
Education World
Every Day Edit - Grand Canyon National Park
In this everyday editing worksheet, students correct grammatical mistakes in a short paragraph. The errors range from capitalization, punctuation, spelling, and grammar.