Pre-school education establishments have been differentiated by form and category. Superior category kindergartens make arrangements to expand their permanent staff by bringing in additional teachers specializing in one field or another. Pre-school education establishments are divided as follows according to function:
• kindergartens
• kindergartens prioritizing one or several directions of child development (intellectual, artistic and aesthetic, physical etc.)
• kindergartens of the compensatory type prioritizing skilled correction of abnormalities in children’s physical and psychological development
• supervision and health improvement kindergartens prioritizing sanitation, hygiene, prophylaxis and health improvement measures and procedures
• combined kindergartens which can include general development, compensatory and health improvement groups in various combinations
• child development centres - kindergartens which stress the physical and psychological development, correction and health improvement of all children attending.