Best Pre-School A preschool, also known as nursery school, pre-primary school, playschool or kindergarten, is an educational establishment or learning space offering early childhood education to children before they begin compulsory education at primary schoolA preschool, also known as nursery school, pre-primary school, playschool or kindergarten, is an educational establishment or learning space offering early childhood education to children before they begin compulsory education at primary school. Crystal Kids provides with the best ambiance to your pupil with the utmost facilities and that too with are care.