In this article, the authors sought to understand how student teachers (STs) in a teacher credential program with a history of attention to diverse learners were learning about their culturally and linguistically diverse (CLD) students through Teacher inquiry (TI). STs took actions of various kinds to learn about diverse students: researching contexts and histories; examining student work and performance at full-class, subgroup, and individual levels; and asking and listening beneath the surface to students’ reasoning, attitudes, beliefs, and concerns about school learning and other issues. However, TI elements were used to varying degrees, in various ways, and with varying levels of success.