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Lesson Plan
Curated OER

Pea Brain! Explorations in Estimation

For Teachers 4th - 8th
Students estimate how many peas fit in a container. In this science instructional activity, students calculate the weight of a pea and record it. They use this data to calculate how many peas fit in a human brain.
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Unit Plan
Khan Academy

Khan Academy: Estimating Time (Seconds, Minutes, and Hours)

For Students 3rd - 5th Standards
Practice estimating the length of an event using seconds, minutes, and hours. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Activity
NumberNut

Number Nut: Breaking Up a Day Into Hours

For Students 3rd - 8th Standards
A concise lesson that examines the concepts of time and measurement by breaking a day up into hours. The lesson lists common time referents and important time related facts to remember. Students can practice time telling skills with the...