This paper discusses the relevance of using physical situations to introduce the concept of angles at elementary school. We compare the effectiveness of two geometry teaching sequences. In the first one (physical sequence), the pupils learned the angle concept by experimenting on the playground (i.e. mesospace) and then modelling the situation. In…

Since 1996, hundreds of teacher preparation programs and thousands of schools, school districts, and government agencies have turned to the Framework for Teaching for a better understanding of excellent instruction. The Framework's four domains, 22 components, and 78 key elements provide an expansive, holistic definition of what teachers across…

Guidelines for teaching California's students have changed dramatically in recent years, as state leaders have adopted new academic standards, curriculum frameworks, and instructional materials lists in an attempt to better prepare students for college and career. However, adopting high-quality standards and curriculum materials does not guarantee…

Current science education reforms and the new standards (Next Generation Science Standards [NGSS], 2013) advocate that K-12 students gain proficiency in the knowledge-generating practices of scientists. These practices include argumentation, modeling, and coordinating evidence with theories and models. Practice-based instruction is very different…