A family can begin studying Montessori principles and preparing the home at any point. School entry depends on the programs, places, calendar, and admission rules available locally. There is no universal deadline that decides whether Montessori remains useful. Start with the family's current setting, learn the method, and evaluate the next practical option.
A Montessori work cycle is a long block in which students choose from activities the teacher has already shown, work at an individual pace, receive lessons, repeat work, and put materials away. The teacher watches and teaches without repeatedly stopping the whole class for the same change. Duration varies by school and age group. The central feature is useful continuity.
A family does not need to ban pretend play to use Montessori principles. Montessori classrooms often emphasize real experiences and use specialist materials for defined lessons, so those materials may have a set use. At home, you can keep that boundary while leaving room for stories, costumes, dolls, blocks, invented worlds, and child-led make-believe. Name fiction as fiction and choose what fits your family.
Montessori classrooms often limit screens because the school day centers on hands-on materials, direct lessons, movement, and activity in the room. Family life includes communication, work, travel, entertainment, and school tasks that may use devices. Decide what each screen session is for, where devices stay, and which routines remain device-free. Set a visible endpoint before the session begins and return the device to the same place afterward.