During the spring of 2006, American Institutes for Research (AIR) conducted an evaluation study on behalf of WGBH. The purpose of the study was to gather data related to the effectiveness of the FETCH! Activity Guide, which was designed to extend the teachings of a new children’s show, “FETCH! with Ruff Ruffman.” The Activity Guide was developed for after-school program facilitators and other informal science educators to use at their facilities, either in conjunction with the television show or as stand-alone resources. Appendix includes instruments.