The passage of California’s Senate Bill 1381 changed the age of children eligible to attend Kindergarten. Children turning 5 after September 1 are no longer eligible for Kindergarten in the Fall of that year.
Transitional Kindergarten, often referred to as TK, is a free public-school program that is essentially an extra public-school grade that began in 2012 and is designed to be a bridge between preschool and kindergarten.
Children who are born between September 2, 2018 and April 2, 2019 can enroll for the 23-24 school year. For the 24-25 school year, the student must be born between September 2, 2019 and June 2, 2020. And finally beginning in the 25-26 school year students who turn 4 by September 1st can enroll in TK .
Although there is no mandated curriculum, transitional kindergarten is modeled on a modified kindergarten curriculum that is age and developmentally appropriate. TK provides a blend of pre-K and Kindergarten curriculum to ease the transition to Kindergarten the following year.
You can enroll in TK on the Elementary School enrollment page.