To help students acquire mathematics and science knowledge and competencies, educators typically use multiple external representations (MERs). There has been considerable interest in examining ways to present, sequence, and combine MERs. One prominent approach is the concreteness fading sequence, which posits that instruction should start with…

Australia's Early Years Learning Framework and leading international researchers argue for more intentional and purposeful teaching of science in the early years. This case study of exemplary practice illustrates intentional teaching of science materials which opened-up learning opportunities in literacy and number. Student-led hands-on…

The purpose of this study was to construct and study the impact of a research-based sequence for teaching the concept of modelling to seventh-grade science students. We identified students' notions of models and the aspects of school science to be addressed regarding the model concept, which were then taken into account when we planned the…