Many scholars agree that educators must incorporate multiculturalism into the curriculum of all undergraduate psychology students. I designed 3 easy-to-use activities that reinforce why multicultural factors are critical to consider in psychology. Using intelligence testing as a platform, these activities highlight issues of language, cultural loading of test items, and cultural loading of assessment methods. Outcome data from participants in 2 large undergraduate introductory psychology classrooms (N = 301) indicated that students were significantly more knowledgeable about multiculturalism and believed multicultural factors to be more important after completing these activities.