A team of researchers and practitioners developed a museum program to coach families in the skills of scientific inquiry at interactive exhibits. The program was inspired by the increasing focus on scientific inquiry in schools and the growing number of open-ended exhibit designs in science museums. The development process involved major decisions in two arenas: which inquiry skills to teach, and what pedagogical strategies to use to teach them. After many rounds of refinement based on evaluation with families, the final program, called Inquiry Games, improved visitors' inquiry behavior in