This chapter discusses how teachers can guide students in complex cognitive processes like conceptual understanding, thinking and reasoning, problem solving, and transfer. It defines concepts and discusses strategies for concept formation like rule-example and hierarchical categorization. It also covers types of reasoning like inductive, deductive, and critical thinking. Problem solving strategies discussed include finding and framing problems, developing strategies, and evaluating solutions. Finally, it defines transfer as applying knowledge to new situations and discusses different types of transfer.