Findings from two studies investigating the effects of Kids on the Block (KOB) puppet shows on elementary school students' knowledge of and attitude toward individuals with disabilities are described. KOB is a troupe of life-size hand-and-rod puppets used to improve knowledge and change attitudes toward persons with disabilities. Results from both studies indicated that KOB performances had positive effects on both the knowledge and attitudes of second, third, and fourth grade students. Study 1 showed that the puppet show participants had more positive attitudes and more accurate factual knowledge of individuals with disabilities compared to the control group participants who did not experience the KOB puppets. Findings from Study 2 showed pretest-post test gain scores for the KOB group were larger than those for the control group. The results taken together provided evidence that a rather simple intervention was effective in terms of changing the knowledge of and attitudes toward individuals with disabilities.