Learn all of the original Montessori memorization games for addition for ages 6 - 9 here from an accredited Montessori source.This document includes Snake Game Addition and Decanomial Bead Box Material Analysis and 9 addition presentations.Addition Snake GamePresentation 1: Addition Snake GameExercise 1: Making the SnakeExercise 1: Working out the SumLittle AdditionPresentation 1: Static – Little AdditionPresentation 2: Dynamic – Little AdditionPresentation 3: Commutative Property – Little Addit