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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Mg Archimedes and the King's Crown

For Teachers 9th - 10th Standards
The King of Syracuse reportedly requested Archimedes' advice for determining if a crown was made with the appropriate mixture of gold and silver. The problem asks learners to find the amount of water displaced in Archimedes' experiment...
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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Mg How Many Leaves on a Tree? (Version 2)

For Teachers 9th - 10th Standards
In this task, learners must estimate the number of leaves on a large tree, taking into account various complex factors such as the area shaded by the tree, the area of irregularly shaped leaves, the uneven distribution of leaves, the...
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Interactive
Other

Ask Numbers: Measurement Conversion Calculators and Charts

For Students 9th - 10th Standards
What kind of unit conversion would you like to do? This site will allow you to do a multitude of conversions. Just click on the specific measurement you are needing to convert. It also provides a history of measurements and a chart of...