Welke Leerlingen Leren het Meest Bij Over DNA?: Effecten van een Interventie Rond Kennisconstructie en Schooltaal bij Anderstalige Leerlingen in Groep 8 van Vijf Zwarte Basisscholen

Educational priority policy schools differ in the learning outcomes they achieve with second language learners. School effectiveness research suggests that teachers can make a difference, but fails to make clear exactly how they can do so. This quasi-experimental study combines a comparison group design with a control group design to answer the research question "How effective are five primary school teachers in creating powerful learning environments for knowledge construction and academic language learning?" This article focuses on which types of students benefit the most from a classroom intervention, called The case DNA. The case DNA is a task-based lesson unit containing eight clear lesson objectives and the necessary lesson materials and learning activities to realize these lesson objectives. The teachers were free to adapt the lesson unit to their own teaching styles. The results of the students on the pre-test, post-test and delayed post-test DNA were analysed using multilevel analysis. Results show that socio-economic status, language proficiency, number of turns, teacher expectations and home language Turkish predict differential learning outcomes.