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Lesson Planet Article
Curated OER

Go Ahead, Take a Guess! Estimating in the Real World

For Teachers 3rd - 6th
Learning how to use estimating to solve real life problems can be a great way for students to apply math skills.
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Lesson Plan
EngageNY

Euler’s Number, e

For Teachers 9th - 12th Standards
Scholars model the height of water in a container with an exponential function and apply average rates of change to this function. The main attraction of the lesson is the discovery of Euler's number.