The paper considers the definition of high quality preschool from a Vygotskian perspective. Similarities and differences in the issues faced in Russia and those in the United States are discussed as background. Three major ideas are considered from the work of Vygotsky and of his students/colleagues, Daniel Elkonin and Alexander Zaporozhets. The first is the Cultural Historical paradigm as the basis for defining development, which emphasizes the importance of underlying cognitive and social-emotional competencies. The second is the idea of "Leading Activity" with dramatic play defined as the leading activity for preschool. The third is the idea of "amplification" or enrichment rather than acceleration of learning. The article ends with a definition of quality based on these three constructs.