Curated OER
Footprints: Take a Step into Estimation
Compare sizes of student footprints with those of elephants and sauropod dinosaurs! Upper graders make estimations of the areas of irregular shapes; students use grids to make and explain estimates within low and high ranges.
Curated OER
Bison Calculations
Students discuss how animals are cared for when they are captured. Using calculations, they determine how much food and water it takes for one bison and compare their water intake to humans. They also compare their weight to that of a...
Curated OER
Represent Rational Numbers
Students identify expanded notation and scientific notation. In this rational numbers activity, students use a calculator to discover the powers of 10. Students practice writing numbers in expanded notation using powers of 10. Students...
Curated OER
Eagle-Eyed
Students study the eyesight of eagles. They discuss raptors and their eyesight and compare it to their own. They measure how far away they can see a small object and its distance. They calculate the eyesight to measure an eagle's...