Why shouldn't I let my child learn the remaining facts at school rather than take The Addition and Subtraction Facts 10-18 class?

Unfortunately, most schools put little emphasis on teaching students methods to master the basic math facts. They are depending on parents to teach the math facts. Most teachers and parents instruct kids to count if they do not know the answer. Children do not learn the math facts by counting. They only get the answers. They cannot establish a solid foundation in math by counting. There is not time to count as children progress from grade to grade. In addition to the time element, they need to have a solid conceptual understanding of the operations of adding and subtracting to progress to more complex math concepts.