; and (B) is a full-time or part-time student at a community college or minority-serving institution participating in an eligible entity. (3) Culturally responsive teaching The term culturally responsive teaching means teaching— (A) using the cultural characteristics, experiences, and perspectives of ethnically diverse students as conduits for teaching them more effectively; and (B) based on understanding the influences of race, culture, and ethnicity in teaching and learning and using the cultural experiences and contributions of different ethnic groups as instrumental tools for teaching academic and social knowledge and skills. (4) Drop-in The term drop-in , when used with respect to child care— (A) means child care that— (i) does not require prescheduling a definite number of scheduled days or hours per week; or (ii) is short term, such as less than 5 hours per day; and (B) includes child care described in subparagraph (A) that requires parents to provide 24-hour notice before using the child care or provides child care subject to availability. (5) Dual language learner The term dual language learner means a child who— (A) is acquiring 2 or more languages at the same time; or (B) is learning a second language while continuing to develop the child’s first language, including a child who may also be identified by a State or locality as bilingual or limited English proficient or as an English language learner, an English learner, or a child who speaks a language other than English. (6) Early childhood educator preparation program The term early childhood educator preparation program means a postsecondary course of study that— (A) is designed to prepare individuals to teach in early childhood settings serving children between birth and age 5