Cognitive theory focuses on how people think and process information. It replaced behaviorism and looks at how the mind works through thinking, knowledge, memory, and problem solving. Key people who developed aspects of cognitive theory include Paivio, Gagne, Gardner, and Bloom. Classroom implications for teachers include using hands-on activities, scaffolding lessons, addressing multiple learning styles, and challenging students' thinking. Technology can also support cognitive theory through educational games, information mapping, research tools, and interactive software.