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Direct linkLong, Caroline; Wendt, Heike – African Journal of Research in Mathematics, Science and Technology Education, 2017
South Africa participated in TIMSS from 1995 to 2015. Over these two decades, some positive changes have been reported on the aggregated mathematics performance patterns of South African learners. This paper focuses on the achievement patterns of South Africa's high-performing Grade 9 learners (n = 3378) in comparison with similar subsamples of…
Descriptors: Foreign Countries, Comparative Analysis, Multiplication, Comparative Education
Stols, Gerrit; Long, Caroline; Dunne, Tim – African Journal of Research in Mathematics, Science and Technology Education, 2015
The purpose of this study is to apply the Rasch model to investigate both the Van Hiele theory for geometric development and an associated test. In terms of the test, the objective is to investigate the functioning of a classic 25-item instrument designed to identify levels of geometric proficiency. The dataset of responses by 244 students (106…
Descriptors: Item Response Theory, Geometry, Geometric Concepts, Mathematical Concepts
