This paper outlines the efforts of two mathematics teacher educators in their use of online videos to expose their elementary preservice teachers to examples of reform teaching, as espoused by the National Council of Teachers of Mathematics. The online videos provide an excellent source for reflection, and each author shares their different avenues to encourage both discussion and reflection about the practices seen on the videos. Actual student comments about videos they have viewed reveal the motivating and enlightening nature of this delivery method. While several websites provide access to online videos, this paper highlights PBS Mathline (http://www.pbs.org/teachersource/mathline/lessonplans/search_k-2.shtm).