This study examined the perceptions of teachers experienced in working with mixed-age groups in child care settings for children from birth through age 12. A mixed-age group was defined as one with children having at least a two-year range in age. Questionnaires were mailed to 92 licensed family child care and school-age child care providers in Virginia, with a 27 percent response rate. Teachers responded to open-ended questions regarding the benefits and disadvantages of working with mixed-age groups. Results showed that providers agreed that both older and younger children more readily learn sharing, new skills, and new roles. Older children learn patience, nurturing, family roles, and leadership; younger children more rapidly learn sharing, new skills, and language. Providers perceived very few adverse affects to managing a mixed-age group of children. The primary concern was with individual supervision and ability to meet children's individual needs, such as meals and toileting. A checklist is included to assist with the decision of whether to implement mixed-age groupings of young children. (MM)