These cashback deals certainly add up if you are looking to improve your child's maths skills. The Maths Factor was set up by Carol Vorderman with the mission to unlock every child's confidence in maths. The Maths Factor is an online maths tutoring site for four to 11 year olds. The content is ordered to match the national curriculum in England, but the site is used successfully by children around the world. At the heart of The Maths Factor are short sessions designed for daily use. Each session starts with a video tutorial by Carol, followed by a fun warm-up and then a practice. There are over 1,000 of these sessions, arranged into 32 topics.