Digital curricula can constrain teachers with ready-made instructional materials. The authors used Mathematics Teaching Practices (MTPs) to modify a digital curriculum to engage students in more thoughtful and meaningful lessons. In this article, the authors visit one of their third-grade classrooms, in which they used the prescriptive digital curriculum Go Math! The Go Math! curriculum uses both video and slides for instruction. In this lesson, the authors worked to develop students' understanding of the attributes of triangles, but they were not satisfied with simply using the provided curriculum. The authors realized that the students needed more interaction with the concepts, so they modified the lesson to enhance the students understanding by including the MTPs.