He mea nui i roto i te ako pāngarau te whakamārama a te tamaiti i āna mahi hei whiriwhiri i te otinga ki tētahi rapanga. Mā konei e pakari ai tōna reo me tōna hinengaro whakaaro whaitake.
In mathematics it is important for children to explain how they achieved an answer to a particular problem. This helps to strengthen their language and mathematical reasoning.