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About the Study: Overview

TK in California

In 2010, Governor Arnold Schwarzenegger signed the Kindergarten Readiness Act (SB 1381) into law. The law changed the kindergarten age cutoff from December 2 to September 1, phasing in the new age requirement by moving the cutoff date back one month per year for three years, beginning in fall 2012. SB 1381 also established a new grade level—transitional kindergarten (TK)—which is the first year of a two-year kindergarten experience for students born between September 2 and December 2. When fully implemented, TK is intended to provide an additional year of early education to 120,000 children each year, with the goal of promoting their school readiness and reducing the achievement gap.


Click here to learn more about TK in California.