The development of concepts through thousands of years

There are several difficulties when teaching concepts; we have to consider its content, its abstract meaning, its visual representation, verbal and nonverbal aspects of it, etc. Also, the individual content of a concept changes with the knowledge of someone. However, the content of the concepts through the ages vary but education does not necessarily follow the changes. Not talking of the everyday meaning of a concept, this can get stuck at a certain level, while the scientific content changes. The concepts we teach in schools are not necessarily the actual ones. Thus, it is necessary to revise how we teach some of the concepts. One of the most important concepts of this kind is the prime number. Classification: D30, D39, C30, C39. Keywords: Prime number, concept development, goals of mathematics education, cognitive processes.