Home Getting Started Answer Try These Think About This... Did You Know? Resources
Challenge 52: Capture-Recapture How many fish in the pond
Figure This!
in the pond
Figure This!
To estimate the number of fish in a pond, scientists captured 150 fish, marked them, and then let them go. The next day, they captured 170 fish from the pond. Of these, 20 had been marked the day before. About how many fish are in the pond?
graphic Flipper graphic
graphic bubble1 graphic
graphic bubble2 graphic
graphic2 Need A Hint?
graphic fish1 graphic
fish3 graphic2
graphic fish2 graphic
graphic graphic2
Most people throughout history have created designs and patterns to express their cultures. Many such designs also feature an underlying mathematical pattern. Studying mathematical designs and patterns helps archaeologists and anthropologists understand a

Google Classroom Google Classroom logo or Canvas Canvas Logo

Powered by ASSISTments

HomeGetting StartedAnswerTry TheseThink About ThisDid You Know?Resources
Try Another ChallengeChallenge IndexMath Index · Printing the ChallengesEn Español
Family CornerTeacher CornerAbout Figure This!
©2004 National Council of Teachers of Mathematics
Web site and CD-ROM design/production
© 1999-2004 KnowNet Construction, Inc.