The current scenario poses new challenges before us in the form of pandemic which requires multidisciplinary approach and collaborative efforts to think for creative solutions. The valued skills in future will be of cooperation, collaboration and higher order cognition rather than competition and cramming. It thus becomes imperative to develop higher order thinking skills among the future generation, so that it can process new information and apply it. This book presents a study which suggests that collaborative Learning could be utilized as a pedagogy method to develop Cognitive Processing system among adolescents. Cognitive Processing system is an input-process-output system, through which an individual gathers information through the senses, processes upon it and gives the output in the form of conclusions to act upon. Components like Memory, Comprehension, Analysis, Problem Solving, Reasoning, Logical Thinking, Creativity, Critical Thinking, Planning, Decision making and Insight are included in the Cognitive Processing System. Cognitive Processing System develops better through interaction with others; Collaborative learning pedagogy provides us an opportunity to engage students in different interaction activities. This research study provides insights to teachers and teacher educators to practice Collaborative learning to develop Cognitive Processing System in their classrooms.