Thank you!One of my favorite publishers for math workbooks for students. I have many of their books and have been consistently pleased with the quality and number of resources they provide. The workbooks include more than enough practice problems for your child to work through during the school year and the book comes along with their online website access. To my knowledge, all of their workbooks come with video explanations on their website. Some instructor reviews question by question making this an essential workbook to have for all parents and teachers. As a parent who has used their books for my kids and continue to do so, I highly recommend this brand.