Mohamed ElhammoumiMohamed Elhammoumi is Associate Professor at the Department of Psychology, College of Social Sciences at the Imam Muhammad Ibn Saud Islamic University in Saudi Arabia. He has published numerous papers on child development, cultural psychology, and th role of culture and family structures on the development of mental abilities, proportional reasoning and cognitive development including “Socio-Historicocultural Psychology: Lev Semenovich Vygotsky: A Bibliographical Notes”. Read More Read Less