The Maplewood-Richmond Heights Pre-School Program designed Preschool Skills Checklists, I and II to evaluate all 3- and 4-year olds, during the first month of school, to determine where to begin teaching each child according to his immediate level of achievement. The teachers informally checked the children on the skill sheets throughout the year as they mastered specific skills, and formally checked each child during the months of September, February, and May. In comparison with standardized tests, the preschool staff believed that their checklists, which form the main substance of this report, provide a more accurate assessment of each child's achievement and potential. (CS)