; (ii) a comprehensive evaluation of the effectiveness of instructional practices used in the programs; and (iii) a comprehensive evaluation of professional development strategies. (h) Dissemination of best practices The Secretary shall disseminate information on model programs, materials, and other information developed under this section that the Secretary determines to be appropriate for use by early childhood education providers to improve the school readiness of English learners. (i) Authorization of appropriations For the purposes of carrying out this section, there are authorized to be appropriated $15,000,000 for fiscal year 2024 and such sums as may be necessary for each of the 4 succeeding fiscal years. (j) Definitions In this section: (1) Dual language immersion program The term dual language immersion program means an instructional strategy in which students— (A) are taught literacy and content in English and a partner language; (B) use the partner language for at least half of the instructional day; and (C) foster bilingualism, multiliteracy, enhanced awareness of linguistic and cultural diversity, and high levels of academic achievement through instruction in English and a partner language. (2) Early childhood education program The term early childhood education program includes a State-funded preschool program and a Head Start program. (3) Eligible entity The term eligible entity means a partnership between— (A) at least one local educational agency; (B) at least one early childhood education program