Sunnyvale Child Care Service 1155 E Arques Ave The Knowledge Learning Corporation (KLC) family is the leading child care andamp; early childhood education provider with over 2000 centers nationwide. Sunnyvale CA Child Care Service Prodigy Child Development Ctr www.knowledgelearning.com child care daycare early childhood education knowledge learning corporation child care daycare early childhood education knowledge learning corporation Business Reviews Prodigy Child Development Ctr Testimonials