This article reports on the design and findings of the first iteration of a classroom-based design research project which endeavours to design a professional development intervention for teachers' mathematical problem-solving pedagogy. The major outcome of this study is the generation of design principles that can be used by other researchers…

Despite curriculum imperatives, in South Africa and worldwide, for learners to have more autonomy in investigations, they remain largely teacher controlled with learners having only limited opportunities in planning. This design-based study explored how a cartoon can be employed in a Grade 9 Natural Sciences class in prompting learners to plan…

In this article we illustrate how the piloting process has influenced two widely different studies within the educational sciences. These studies differ in design but have as a common denominator that they used piloting methods in their preparatory process. They are also similar in the intention of the main researchers of conducting research with…