From speck to story: relating history of mathematics to the cognitive demand level of tasks

Abstract It is a challenge for mathematics teachers to provide activities their students at high level of cognitive demand. In this article, we explore the possibilities that history has offer meet challenge. History can be applied in education different ways. We framework describing appearances curriculum materials. This consists four formats are entitled speck, stamp, snippet, and story. Characteristic properties named each format, terms size, content, location, function. The related ascending levels describe how these formats, together with design principles also derived from mathematics, used raise existing tasks new tasks. combination demand levels, called 4S-model. Finally, advocate 4S-model play role teacher training enable prospective reach higher classrooms.