Mathematics education at primary and secondary school levels poses serious challenges to pupils. It is important to ensure that instruction at primary school level is clear and coherent so that pupils will develop mathematical skills logically, consistently and systematically. This is also essential because it will help pupils to grasp mathematical concepts with a minimum of obstacles. One problem that pupils face every year is the changing of teachers. As pupils change teachers, there is a likelihood that a teacher in an earlier grade may have taught a concept in a contradictory way or not covered it at all.