How Addition and Subtraction Became a Fact Family
By Lisa Holder - O'Sullivan
Published: September 20, 2009.
Teachers and Parents this book is a fun way to teach Fact Families, a math concept taught in the primary grades, use the book along with some visual aides as suggested in the example lesson and your student(s) will be a pro at Fact Families in no time! I used this in my own 1st and 2nd grade classrooms and the kids loved it so much they ask to use the book and numbers during their free time.