The Mailbox - Grades Preschool magazine is a publication designed for preschool teachers and contains tips and advice for numerous classroom activities. Find useful ideas and learn the best way to run projects, save time, solve various problems, teach reading writing and much much more. Mailbox makes learning fun because it offers great games and puzzles creating opportunities for children to learn by playing. The ideas and projects featured in the magazine are often created by other teachers from all around the country and have already been experienced and tested in the classroom. Show your students how school can be fun and ease your work with Mailbox – Preschool. The magazine is published bi-monthly with 6 issues per year by The Education Center, Inc.