4 1 50 Montessori Math and the Developing Brain Michael Duffy Primary Author mixed material 97809398195442 New York, NY, United States Michael Olaf, Inc. 2014 sd%3Blfm%3Blsdm%3Bflc%2Cs%3Bkem%3Bfkms%3Bekmf%3Bkms%3Bems.jpg.jpg Cognitive, Motor, and Sensory Activities for Children From 12 to 24 Months NAMC Primary Author Dale Gausman Primary Author Maria Montessori Primary Author mixed material NAMC cover_toddlers-a-cognitive-motor-and-sensory-activities-for-children-from-20240619145407.jpg Cognitive, Motor, and Sensory Activities for Children From Birth to 12 Months Dale Gausman Primary Author NAMC Primary Author Maria Montessori Primary Author mixed material NAMC cover_infants-a-cognitive-motor-and-sensory-activities-for-children-from-20240619144914.jpg James E Johnson Additional Author James F Shristie Additional Author Thomas D Yawkey Additional Author mixed material 032101166X New York Addison Longman 1998