Synopsis:
For some people, bats are one of the scariest groups of creatures out there. Not for Bert Grantges. He knows that without bats we'd be overrun by bugs, and that would be scarier. He uses basic math like estimation, percents and ratios to track bat populations.
Running time 1:43 minutes.
Hands-On Math Activity:
Bat Mobile
Subject: Mathematics
Topics: Ratios
Grades: 2 - 4; 5 - 7
Hands-On Math / Problem Solving Activity:
Counting Cars
Subject: Mathematics; Problem Solving
Topics: Estimation; Use Proportional Reasoning
Grades: 3 - 5
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