Introduces students to basic math concepts through a brief story about a little girl, Deena, who has no money to buy her mother a birthday present, and learns how a found penny can help her solve her problem.
Challenged to spend twenty dollars in one day, a boy who loves money not only learns about bargain hunting and keeping track of his remaining balance, he also learns that spending can be fun.
When some classmates come down with chicken pox, Kip uses tables and charts to help determine if there will be enough students to put on the planned Holiday Show.
Before he can go fishing, a boy has to figure out how to get himself, his dog and all his gear out to an island in a boat that can only carry 100 pounds.
Henry wants to make sure that his older sister Harriet never gets more of anything than he does so he carefully keeps score until Harriet gets a cavity and he gets none and Henry discovers that sometimes zero is better than one.
While pondering how to buy her mother a birthday present with no money, Deena find a penny and follows a process of discovery about how pennies add up to nickels, which add up to dimes, all the way up to four quarters making a dollar.