The Seattle public school district has employed a critical race theorist who applies the controversial theory to school policies and practices as part of the district’s efforts to embed it in elementary schools.

In an explainer for “Black Studies,” a course examining black experiences from a global perspective, Seattle Public Schools notes the class includes critical race theory. According to the district, the course aims to “develop liberatory curriculum for grades K-5 that embeds Black Studies across all subjects, and to create a district-wide Black Studies course for middle and high school students that will be required for graduation from Seattle Public Schools.”