Gabriela Ramos had hardly knocked when four-year-old Fátima Martínez opened the front door of her family’s home and ushered in her preschool instructor.

With a dimpled smile on her face, Fátima sat down at a miniature Disney princess-themed table in the middle of her family’s living room. Ramos joined her, and launched into a bilingual lesson focusing on colors, shapes and animals.