Achiam presents a template for improving the exhibit design process to ensure that the visitor experience matches the designer’s intended learning outcomes. The template is based on praxeology—a model of human activity that, in the case of museum engagement, addresses the ways in which visitors know what to do with an exhibit and then come to understand the scientific phenomena the exhibit was designed to demonstrate.
Informal science educators are seeking ways to support scientific reasoning. This study of touch tanks at four different museums found that, although the exhibits were not designed to do so, they supported families in engaging in scientific reasoning practices. Specifically, they engaged family members in making claims, seeking evidence, devising tests, seeking information, testing claims, and challenging claims made by others.