Math Symbols 3-Part Montessori Cards - 9 Color Choices A Math symbol always stands for something specific - that could be a quantity or an operation. A great way to teach children about different math symbols is to use these fantastic Montessori nomenclature cards. These Montessori Math symbols 3 Part Cards make a great visual aid for children, as for children learning Math symbols can be a bit tricky when they are just starting. Using this Maths symbols 3-Part cards in your math lessons is a