These ducks are great for teaching number concepts, counting and comparing numbers up to 10. You can print them out, cut them separately or you can cut the rows and fold between the facing ducks. This way a number is on one side and the dots are on the other side of the cards when students need to compare numbers.
These ducks can be used in a math center as matching cards or the folded ducks that can be order from 1 to 10. Great activity to use with the book called 10 Little Rubber Ducks by Eric Carle.
I also have a set of ducks used to teach ordinal numbers from 1 to 20.