|photos via cc: mouth 1 - Dana Beveridge, mouth 2 - Chris Penny, mouth 3 - Izik|
This fun idea comes from Fall into First! Take photos (or have students take photos) of students' toothless mouths (showing their teeth). Next, ask kids to estimate the total number of teeth that have been lost in the class (sum of all their teeth lost). Have students go around the room and tally how many teeth each of their peers has lost. Have them count all of their tally marks and figure out the total. Whose prediction was the closet? Then, as a class, create a graph of how many teeth each child is missing. Hang the photos up, as well as the graph. Students try to guess who's mouth is whose based on their knowledge of how many teeth each of their peers has lost, as well as their keen observation skills.
Science experiment - Brush your teeth! - Part 1 and Part 2