International Educational Technology Conference IETC, Illinois, Amerika Birleşik Devletleri, 3 - 05 Eylül 2014, cilt.176, ss.20-26
Children gain the most important basic concepts which help them understand and know about life, during preschool education. According to Manocha and Narang (2004) "concepts" are the basic units of all types of learning. Human beings from the infancy to old age learn new concepts and use old concepts in new situations of their daily life. Individuals differ in their level of concept formation depending on their age, intelligence and experience.