Inquiry-based learning is an educational technique based on John Dewey's philosophy that learning begins with student curiosity. It focuses on developing problem-solving and information-processing skills. Lessons begin with an essential question to spark investigation and are student-driven, with teachers as facilitators. Students work cooperatively to research questions, engage with various resources, and create a final product to demonstrate their understanding. An example compares traditional and inquiry-based approaches to teaching about rock types.