Maria Miller Video on teaching Addition and Subtraction Facts

Maria Miller is the author of the Math Mammoth ebooks and curriculum. I highly recommend her materials, as we have found them quite useful over the years. Her ebooks are available for download at CurrClick or at her own web site (via Kagi). She also has a web site called HomeschoolMath.net which contains curriculum reviews, free printable worksheets, articles, games, and her blog. You can also sign up for her e-newsletter and watch her other great teaching videos as well.