This article builds upon a systematic review of 53 articles in international research journals and makes three main contributions. First, it develops a method for identifying motives, values, and assumptions in research by analysing segments of text in journal articles. Second, it represents a reflective account of research within the field of mathematics education. Third, it captures the ongoing directions of intentionalities inherent in the diverse field of special education mathematics and, thereby, some of the characteristics of the core issues in this field. Three directions of intentionalities were identified: towards teachers and teaching competence, towards enhanced mathematical achievement, and towards every student's learning. The results indicate that each direction has specific limitations and potentials. In order to improve special education mathematics, we recommend that researchers and practitioners remain broadly informed and involved in all three directions of intentionalities.

Mastering traditional algorithms has formed mathematics teaching in primary education. Educational reforms have emphasized variation and creativity in teaching and using computational strategies. These changes have recently been criticized for lack of empirical support. This research examines the effect of teaching two differently structured written calculation methods on teaching arithmetic skills (addition) in grade 2 in Sweden with respect to students' procedural, conceptual and factual knowledge. A total of 390 students (188 females, 179 males, gender not indicated for 23) were included. The students attended 20 classes in grade 2 and were randomly assigned to one of two methods. During the intervention, students who were taught and had practiced traditional algorithms developed their arithmetic skills significantly more than students who worked with the decomposition method with respect to procedural knowledge and factual knowledge. These results provided no evidence that the development of students' conceptual knowledge would benefit more from learning the decomposition method compared to traditional algorithm.

Vad får elever möjlighet att lära sig beroende på vilka metoder som används i matematikundervisningen? Frågan har tidigare bearbetats i en avhandling 1 som här aktualiseras på nytt.