Montessori Education Association and Pre-School Education Expansion and Development Association’s 140-hour Certification Program continues in Sihirli Bahçe Montessori School.Selçuk University Early Childhood Education department lecturer Mrs.Türkan Yiğit Koçak gave lesson about ”four operations” with Montessori Math tools to our teachers and participants who want to be Montessori educators,from various parts of the country.