Curated OER
Estimation
Third graders gain an understanding of estimation as an educated guess. They explore measuring and how looking at various object size and shape can help form ones guess towards estimation. They use dinosaurs for an estimation activity.
Curated OER
Science: The Age of the Redwoods
Students discover how to estimate the age of redwood trees. They measure the trees' diameters by using string to calculate the circumferences. Students conclude by discussing the science of dendrochronolgy.
Curated OER
Big Foot
Students measure the length of their feet and shoes using nonstandard measurements. They check their estimates and record theirmeasurements on a paper.
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...