Four foundations for young children's development appear to underlie children's competence and predict success in school from pre-kindergarten through third grade--self-regulation, representation, memory, and attachment. If teachers united what they know about child development with quality educational practices, what would school be like for young children in pre-kindergarten through third grade? Seven major differences are highlighted in this paper. These are: (1) Development, Content, and Process; (2) Play (Self-Regulation); (3) Understanding Misconceptions (Representational Thought); (4) Covering The Real Basics (Memory); (5) Relationships (Attachment); (6) Experimentation, Explanation, and Explicit Instruction; and (7) Deciding What to Teach. (Contains 1 footnote.)