Video tutorials are taken from free resources on the web, like youtube. If your child doesn’t understand the posted video, then you can always search youtube for another one that might work better for him/her. All the lessons are taken from Internet for Classrooms website online, you have to register and create an account for your child, but the price is extremely reasonable, about $7.00 for the whole year, and they offer a discount for multiple children. There are many other free resources offered online to practice math. Also Starfall.com offers Kindergarden and 1st Grade math and language arts activities that are fun to play and help you child learn at the same time.