This set includes a chart with visual aides showing one dozen items. There are four worksheets which follow. The first three worksheets give a description of one dozen items (a dozen cupcakes, a dozen kittens, etc.) and asks how many. The final worksheet asks for multiples of a dozen: two dozen birds, three dozen cookies. These worksheets were developed for children in the autism spectrum. They are simple and include pictures to give concrete meaning to the concept of a dozen.