A system and a method for exercise and/or child development for use by an adult and a child. The system and method utilize a mat or other surface upon which exercises are performed. Such a surface is sized to permit an adult to perform exercises thereon. Such a surface has a plurality of indicia marked thereon. The system and method further utilize instructions describing at least one exercise and/or child development activity. The exercise and/or child development activity incorporates the mat and its indicia.