Although universities are aware of the need to promote diversity in science, technology, engineering, and mathematics (STEM), this awareness has not translated into significant changes in classroom environments. Many STEM instructors would like to offer equal opportunities for success to all of their students, hut they are not sure where to begin. We describe an effective group of teaching tools that can empower STEM faculty and graduate students to modify their courses to address diversity at their own pace. These resources extend from awareness exercises to recommendations for action and have been useful tools for course design, teaching assistant training, and faculty development.