8-1/2" x 11" *50 sheets per tablet This 2-sided tablet, which was developed in collaboration with the National Association for the Education of Young Children (NAEYC), shows how to properly change a diaper step-by-step according to the book Caring for Our Children, National Health and Safety Performance Standards: Guidelines for Out-of-Home Child Care Programs. Pictures and descriptions included for all 11 steps. Appropriate for Grades 8-adult.