This non-experimental, exploratory and descriptive study, using a qualitative case study approach, aims to investigate whether there is evidence of variance in the quality of school-based assessment (SBA) in Grade 9 mathematics. Participants were purposefully selected from five schools in a district in the Northern Cape in South Africa. After…

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…

The purpose of this study is to explore Grade 9 learners' understanding of ratio and proportion. The sample consists of a group of 30 mathematics learners from a rural school in the province of KwaZulu-Natal, South Africa. Data were generated from their responses to two missing value items, adapted from the Concepts in Secondary Mathematics and…