Running Head: CHILDREN’S KNOWLEDGE OF TEACHING Children’s developing knowledge of and reflection about teaching David M. Sobel Susan Letourneau Brown University Acknowledgments: This work was supported by the National Science Foundation (1223777 to DMS). We thank Chris Erb, Deanna Macris, and Tiffany Tassin for helpful discussion and Isobel Heck and AntonijaKolobaric for assistance with data collection and analysis. Address correspondence concerning this article to: D. Sobel, CLPS Department, Box 1821, Brown University, Providence, RI 02912, Phone: 401-863-3038. Fax: 401-863-2255. Email: Dave_Sobel@brown.edu