In the past few decades, educators and physics education researchers have been developing and evaluating instructional approaches designed to improve students' conceptual understanding and problem-solving skills in physics for students with different prior preparation and backgrounds. These instructional approaches often require students to be…

A rainbow reveals the colors of sunlight in a breathtaking way, but the formation of this natural event cannot be controlled by human beings. Transforming this out-of-class experience into a teaching activity is a challenge for science educators. This paper outlines two activities for rainbow formation in the science classroom in cases of good…