Learning mathematical thinking and reasoning is a main goal in mathematical education. Instructional tasks have an important role in fostering this learning. We introduce a learning sequence to approach the topic of integrals in secondary education to support students mathematical reasoning while participating in collaborative dialogue about the…

A study of variations in pupils' prior knowledge for their influence on the sequencing mode of text presentation found prior knowledge reduced the effect of size of sequencing procedures. A second experiment comparing performance of pupils with low prior knowledge level using websequence and linear sequence found webteaching was superior.…