Curriculum integration is defined as students choosing topics to study based on their questions. Several middle schools throughout the United States offer students the opportunity to develop the curriculum during the year based on their questions about themselves and about the world. The author provides the rationale, the developmental reasons for, and the significance of student-designed curricula to meaningful learning that schools are responsible for delivering. Twenty-six middle level students from two curriculum integration programs report via interviews in this qualitative study that their abilities in creative and critical thinking, decision making, researching, problem solving, and socialization skills are better developed than if they had experienced a traditional curricular setting. Students emphasize being highly motivated due to the choice they have in determining curricula.