Transitional Kindergarten (TK)
Preschool children who are 4 years of age and will turn 5 between September 2 and December 2 are age eligible to attend a transitional kindergarten (TK) program.
TK curriculum is aligned with the California Preschool Learning Foundations
(http://www.cde.ca.gov/sp/cd/re/psfoundations.asp).
Developmentally, those enrolled in a TK program are still considered preschool aged children. For information on preschool aged children within the mathematical learning progression, go here: http://www.earlymathca.org/preschool.
Starting with the 201213 school year, local education agencies (i.e. school districts, county offices of education, and charter schools) began offering transitional kindergarten programs.
The California Mathematics Framework includes a chapter for TK. This framework includes California Preschool Learning Foundations and California content standards for kindergarten. TK is, therefore, a bridge between preschool and the kindergarten year.
Find the entire TK chapter of the Mathematics Framework on the CDE website here: http://www.cde.ca.gov/ci/ma/cf/mathfwchapters.asp. This chapter includes a sidebyside alignment of the Preschool Learning Foundations with the California Common Core State Standards for Mathematics for Kindergarten.
When developmentally appropriate, TK is a good time to introduce children to the kindergarten standards without the expectation of mastery. For this reason, information and resources within the TK/K section include both the Preschool Learning Foundations and kindergarten standards.
Students in preschool and transitional kindergarten programs who have been exposed to important mathematical concepts—such as representing, relating, and operating on whole numbers and identifying and describing shapes—will be better prepared for kindergarten mathematics and for later learning.
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For more information on Transitional Kindergarten, go to the California Department of Education's website:
http://www.cde.ca.gov/ci/gs/em/kinderfaq.asp
According the California Mathematics Framework, a highquality mathematics education for TK includes the following:

A mathematically rich environment

Frequent opportunities for mathematical discourse

Engaging and meaningful mathematics activities

Explicit instruction

Modeling of mathematical thinking

Nurturing of students’ mathematical explorations