This paper examines the roles of multimodality and thematic patterns in the teaching of the particle model of matter. Although the particle model is a fundamental topic in science education, there is no consensus on (1) whether or not the model should be introduced in early grades and (2) how to introduce the model to students for the very first…

This case study investigates, at three Swedish schools, primary school students' knowledge of the equal sign. The schools were chosen as representatives of schools whose students have different socioeconomic backgrounds. The data consist of Grade 3 and 6 students' responses to an assessment form based on Matthews et al. ("JRME,"…

This article examines how emergent bilingual students used gestures in science class, and the consequences of students' gestures when their language repertoire limited their possibilities to express themselves. The study derived from observations in two science classes in Sweden. In the first class, 3rd grade students (9-10 years old) were…

This article concerns how teachers can use physical artefacts as mediating means to support emergent bilingual students' learning in science class. The data consist of non-participant observations in a Swedish 3rd grade (9-10 years old) class working with electricity. All students were bilingual, but in different minority languages and the teacher…

The study investigates measurement properties of the reading assessment tasks used in the IEA 1991 Reading Literacy (RL) study and the Progress in International Readings Study (PIRLS) 2001 study. The analysis is based on data from the Swedish PIRLS study, comprising 16,676 students in grades 3 and 4. As an extension to the basic design, not only…