. The use of these action verbs suggests an intention on the part of curriculum writers to draw teachers attention to aspects of reasoning that they could incorporate in their planning. For teachers to be able to each, enact and purposefully assess reasoning, it is imperative that they are clear about its nature. Unless this is evident, we are in danger of a syndrome of shallow teaching where low complexity problems reasoning is absent in classroom discourse (Stacey, 2003) abound and mathematical