A year into California’s universal transitional kindergarten rollout, disparities in classroom experiences highlight challenges in maintaining quality and consistency across districts, as the state strives to meet the developmental needs of 4-year-olds.
One year after California made transitional kindergarten available to every 4-year-old, the programme is still taking shape in classrooms across the state.
What families see can depend heavily on where their child is enrolled. In some schools, children spend much of the day learning through blocks, sand, art and other hands-on materials that early childhood specialists say are better suited to 4-year-olds. In others, the experience can look far more like traditional elementary school, with desks, worksheets and tighter structure.
Teachers and researchers say the gap reflects a broader challenge: access has been achieved, but consistency has not. California has poured billions of dollars into universal transitional kindergarten, also known as TK, including an initial $1.2 billion to prepare schools for expansion and roughly $3 billion in ongoing annual funding as of the 2025-26 school year. State officials have framed the rollout as part of a wider universal prekindergarten system designed to give all 4-year-olds free early education before kindergarten.
Still, educators say the quality of TK depends on whether districts understand that 4-year-olds learn differently from older children. Elyse Doerflinger, a TK teacher in Woodlake Unified in the Central Valley, said some districts were better prepared than others for the expansion and that many still have not fully adjusted to the developmental needs of younger children. She said the classroom environment must account for child-sized restrooms, age-appropriate materials and teaching methods built around exploration rather than long periods of seated instruction.
That view is shared by early childhood specialists who warn that the shift from preschool to TK is not always smooth. Bernadette Zermeño, an early learning curriculum designer, said some teachers moving into TK from higher elementary grades do not yet have a strong grasp of developmentally appropriate practice. Jorge Ramirez, a Pacific Oaks College professor, said the variation across districts is worrying, particularly because the state does not yet have a formal plan to evaluate how TK is being implemented. He said the effects of poor early experiences may extend beyond academics to children’s social and emotional development.
The staffing question may be just as important as the classroom setup. California introduced the PK-3 Early Childhood Education Specialist Instruction Credential in 2025 to build a workforce with more specialised training for the youngest learners. State credentialing officials said more than 500 of these credentials were issued last year. Advocates argue that such training is crucial if TK is to remain more than an enlarged version of kindergarten.
Families are already seeing the difference. Dillon Vallenas said his son Noah had a strong TK experience in Los Angeles Unified because the classroom balanced play and structure, with project-based homework and presentations that helped build confidence. But Carla Hinojosa described a more difficult year for her child in Oakland Unified, saying the class had too many children for the space and that, while teachers were caring, the setting was still overwhelming. Their experiences reflect the central tension in California’s effort: universal access is now in place, but the state is still working to make sure every 4-year-old receives the kind of early education the programme promised.
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