The Montessori Addition Strip Board allows students to practice the sequence of addition combinations 1 to 9, and to begin memorizing the addition tables. Included in this product:The following Montessori Math presentations:a. Montessori Addition Strip Board Presentation 1: Montessori addition bookletsb. Montessori Addition Strip Board Presentation 2: Montessori prepared equationsc. Montessori Addition Strip Board Presentation 3: Number combinations from 1-9d. Montessori Addition Strip Board Pre