Unit Plan
PBS

Pbs: Solve the Ratio and Proportion Problem Beyond a Shadow of a Doubt

For Students 6th - 8th
In this video, Harry finds money on the sidewalk. He uses ratio, proportion, and some knowledge about shadows to return it to the rightful owner. In the accompanying classroom activity, students investigate whether there is a consistent...
Activity
TeachEngineering

Teach Engineering: Yeast Cells Respire, Too (But Not Like Me and You)

For Teachers 9th - 10th
Students set up a simple way to indirectly observe and quantify the amount of respiration occurring in yeast-molasses cultures. Each student adds a small amount of baking yeast to a test tube filled with diluted molasses. A second,...
Lesson Plan
Alabama Learning Exchange

Alex: Sonar Mapping of the Ocean Floor

For Teachers 6th - 8th
Mapping the ocean floor must be done by indirect observation. One method involves bouncing a sonar signal off of the ocean floor and measuring the length of time this signal takes to return. This length can be translated into distance:...
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Scientific Notation

For Students 7th
[Free Registration/Login may be required to access all resource tools.] Recognize the equivalence of decimal numbers in standard form, product form and scientific notation using very small and very large numbers

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