Studying What Interests One Most Why is Group Investigation so effective? First and foremost, it gives students more control over their learning than other teaching methods even other cooperative learning methods do. Students inquire into those aspects of a subject that interest them most. They raise questions that reflect their different interests, backgrounds, values, and abilities. These differences are the group's greatest asset: they ensure a wide range of knowledge and skills. The Group Investigation method provides an excellent structure for harnessing both these skills and students' individual interests for fruitful academic inquiry.