Transitional Kindergarten (TK) is the first of a two-year kindergarten program that is developmentally appropriate and aligned to the California Preschool/Transitional Kindergarten Learning Foundations. TK serves as a bridge between preschool and traditional kindergarten, utilizing a modified kindergarten curriculum taught by a credentialed teacher. 

School districts and charter schools must maintain an average transitional kindergarten class enrollment of not more than 24 pupils per classroom for each school site and an adult-to-child ratio of 1:10.

Universal TK (UTK) means that by 2025–26, regardless of background, race, zip code, immigration status, or income level, every child will have access to TK as a quality learning experience the year before Kindergarten.

• To learn more about Education Code regarding transitional kindergarten requirements, see EDC 48000.

• To learn more about local implementation, visit your school district’s website.

TK is a component of the Universal PreKindergarten (UPK) mixed-delivery system. While families may choose care from across this system, local education agencies (LEAs) are mandated to offer TK to all age-eligible children.

Universal PreKindergarten (UPK) is an umbrella term that includes the California State Preschool Program (CSPP), TK at the California Department of Education, as well as Head Start, district and local community-based preschool programs, early learning services for students with disabilities, private pay preschool, and expanded learning options to support access to a full day of services.

California’s goal is to serve more children ages 3-years-old to 4-years-old, statewide, in high-quality preschool programs. California intends to meet this goal through the implementation of universally available TK, as well as investments in other state-funded programs, such as funding to expand the CSPP and other state-subsidized programs that offer a preschool learning experience.

The Ventura County Office of Education is charged with supporting local LEAs with UPK Planning & Implementation, and has also created a countywide plan to guide these efforts.