Activity
Noyce Foundation

Measuring Mammals

For Students K - 12th Standards
Explore the meaning of scale and proportion with a set of five activities that examines the topic from elementary through high school. The first lessons explore ratio by examining pictures of different sizes. The next three activities...
Lesson Plan
Curated OER

Balobbyland City Planners

For Teachers 3rd - 5th
Students create a mini city using proportions that fit a model human they construct using tin foil. They plan the city including a library, sports arena, living spaces, parks and businesses. When constructing the paper buildings, they...
Lesson Plan
Curated OER

Exploring Gear Trains

For Teachers 1st - 8th
Students work together to build a simple gear train. They record their observations as it gains speed and how the gears rotate. They develop rules about gears based on these observations.
Lesson Plan
Curated OER

Build A Skittles Graph

For Teachers 3rd - 5th
Young scholars explore graphing. In this graphing lesson, students sort Skittles candies and use the color groups to create a bar graph. Rubrics and extension activities are provided.
Lesson Plan
Curated OER

How Many Bears in the Forest?

For Teachers 3rd
Third graders model the tag and recapture of bears and use proportions to estimate the population of the bears in their forest. This is a statistical sampling method used by scientists and naturalists to determine population numbers.
Lesson Plan
Curated OER

Million Dollar Gift

For Teachers 3rd
Third graders create a box big enough to hold a million dollars. This is a project fun to do near the winter holidays with inexpensive gifts included in the boxes. This hands-on lesson very effectively demonstrates the concept of volume.
Lesson Plan
PBS

Pbs Mathline: Bead Dazzling (Proportional Reasoning) [Pdf]

For Teachers 3rd - 8th
A comprehensive lesson on algebraic thinking where young scholars create and identify patterns using proportional reasoning. Research based, this lesson includes technology connections, items for discussion, and extension activities.