These videos introduce kids and their parents and teachers to a tangible, intuitive way to learn the four basic operations in arithmetic, using coloured bars representing the numbers from 1 to 10. There are 5 videos for kids. The first introduces the numbers and bars. The four that follow use the bars to explain the adding, subtracting, multiplying and dividing skills. There are eight accompanying videos for parents and teachers, showing drills to help kids master the four arithmetic skills.