a national cooperative of universities is developing a collection of video case materials about college math instruction. the project goal is to create a visually rich resource for helping novice instructors build teaching skills. the purpose of the presentation is to share some of the materials, review their development, discuss their potential uses, and gather comments to inform materials re-development. attendance by all department members, from those very experienced in teaching college mathematics to those with a few days experience to those with intentions to teach in the future, is heartily encouraged. video clips come from advanced as well as introductory undergraduate mathematics teaching and learning situations.