This paper discusses the development and visitor research of the George D. Widener Memorial Treehouse at the Philadelphia Zoo. The exhibit represents a non-traditional approach to education which involves the child as learner in the guise of an animal. This paper includes key findings from an evaluation study that aimed to achieve a systematic, working description of how visitors use "Treehouse"--what they are actually doing while they are there.
In this article, Jacksonville State University's Stephen Bitgood discusses an evaluation study of a "Falling Feather" gravity-themed exhibit at a science museum. Bitgood shares key findings from the evaluation, which revealed several problems with the exhibit.