Curated OER
Dissecting Squid
Second graders explore biology by dissecting an animal. In this squid anatomy lesson, 2nd graders collaborate in pairs to investigate the inner body systems of a recently deceased squid. Students utilize plastic knives to cut the squid...
Serendip
How Eyes Evolved – Analyzing the Evidence
Octopodes existed for hundreds of thousands of years before humans, yet our eyes share many similarities. Scholars analyze the evidence to determine if the evolution of eyes best fits a homology or analogy model. They discuss the issue...
Curated OER
Geometry: Practical Applications of the Distance Formula
Students, working independently and in groups, apply the distance formula to practical situations. After solving various problems, students in pairs design coordinate planes from the school blue print to measure the distance from the...