Sorry, you need to be a member to view this video. Click here to sign up!
Grade Levels: 2nd Grade, 3rd Grade, 4th Grade, 5th Grade, 6th Grade, 7th Grade,
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 population
Running Time: 01:51 minutes