Resilient ABS plastic implies that the microscope can handle drops without the need of breaking (perfect for "clumsy" Little ones)! Level 6 encourages dilemma resolving and tactile experimentation as your son or daughter learns to imagine and execute programs. There’s no official list of Maria Montessori approved toys for teenagers. https://wooden-toys-dorebu.blogspot.com/2021/07/the-2-minute-rule-for-wooden-math-board.html