Written and illustrated by AMI Primary Diploma holder Mary Da Prato, My First Montessori Book of Square Numbers, the sequel to My First Montessori Book of Skip Counting, isolates square numbers and their mathematical notation in preparation for Montessori Elementary studies. Included in the "For Parents" section of this publication is an overview of prerequisite activities for mathematical squaring as well as descriptions of Graded Geometric Figures and The Decanomial Square.