Republic Act No. 10157, known as the Kindergarten Education Act, institutionalizes kindergarten education as part of the basic education system in the Philippines, making it mandatory for entrance to Grade 1. The act aims to provide equal access to quality preschool education, using mother tongue as the primary medium of instruction, and outlines the responsibilities of the Department of Education for its implementation. It also includes provisions for funding, teacher training, curriculum development, and the establishment of regulations to support effective kindergarten education.