How does camouflage affect survival rates? MAKE A PREDICTION How does camouflage affect survival rates? http://animals.pppst.com/banner_camouflage.gif
SET UP Count out 50 black beads and place in box Count out 50 “other” color beads and place in box Fill in the “AT START” columns on your data sheet. PERCENT OF TOTAL = ___# of beads__ X 100 total beads in box
FEEDING RULES CLOSE EYES/ LOOK AWAY during mixing. Look quickly at box when it stops. Pick the FIRST ONE you SEE! NO picking your favorite color! Only pick ONE AT A TIME! Swirl slowly, choose, repeat until you remove 20 beads. http://www.feebleminds-gifs.com/ani5.html
AFTER 1ST FEEDING Calculate number of black beads IN BOX Calculate number of “other” color beads IN BOX Fill in “AFTER 1ST FEEDING” column on data sheet. PERCENT OF TOTAL = ___# of beads_ X 100 total beads in box
REPRODUCE Number of black beads in box ÷ 2 http://greenwood.alpinedistrict.org/Root%20Greenwood%20/images/pictures/Mom,%20Dad%20&%20Baby.jpg http://pro.corbis.com/images/42-18867237.jpg?size=67&uid=%7B21E60102-7098-4CA2-B76E-6ACC29D9CA18%7D REPRODUCE Number of black beads in box ÷ 2 Add this many black beads to box Number of “other” color beads in box ÷ 2 Add this many “other” color beads to box Round UP for odd numbers of beads. Fill in “AFTER 1st REPRODUCTION” column on data sheet.
FEEDING RULES CLOSE EYES/ LOOK AWAY during mixing. Look quickly at box when it stops. Pick the FIRST ONE you SEE! NO picking your favorite color! Only pick ONE AT A TIME! Swirl slowly, choose, repeat until you remove 20 beads. http://www.feebleminds-gifs.com/ani5.html
AFTER 2nd FEEDING Calculate number of black beads IN BOX Calculate number of “other” color beads IN BOX Fill in “AFTER 2nd FEEDING” column on data sheet. PERCENT OF TOTAL = ___# of beads_ X 100 total beads in box
REPRODUCE AGAIN Number of black beads in box ÷ 2 http://greenwood.alpinedistrict.org/Root%20Greenwood%20/images/pictures/Mom,%20Dad%20&%20Baby.jpg http://pro.corbis.com/images/42-18867237.jpg?size=67&uid=%7B21E60102-7098-4CA2-B76E-6ACC29D9CA18%7D REPRODUCE AGAIN Number of black beads in box ÷ 2 Add this many black beads to box Number of “other” color beads in box ÷ 2 Add this many “other” color beads to box Round up for odd numbers of beads. Fill in “AFTER 2nd REPRODUCTION” column on data sheet.
FILL IN CLASS DATA SHEET on projector with your group’s data Copy the class data onto YOUR data sheet