This book is about the effects of collaborative constrtuctivism strategy on biology students by comparing the mean scores of experimental and control groups. It also determines the effect of collaborative constructivism and lecture method on the cognitive style of Biology students in Desertification and Biodiversity conservation concept. This book will be useful to biology students and interested science scholars.

Mohammed Adama is a lecturer in Biology Department of the Diretorate of Degree Programs, Umar Suleiman College of Education, Gashua, Yobe State. He is currently a PhD student in Ahmadu Bello University, Zaria.