Building on an earlier 2008 summary prepared for OECD by Marlene Scardamalia and Carl Bereiter, this paper by Gesa S. E. van den Broek provides a more extensive discussion of approaches described as "research based innovation." "Fostering Communities of Learning" is a constructivist approach in which teachers help students discover important curricular concepts. "Learning by Design" is an inquiry-based science learning programme based on case-based reasoning models. "Central Conceptual Structures" (CCS) theory describes developmental changes in children's thinking and what is needed to progress through stages in specific cognitive domains. "Web-based Inquiry Science Environment" (WISE) is an internet-based adaptive learning environment building on the principles of knowledge integration. "Cognitive Tutors and ACT-R theory" are intelligent adaptive software programmes that provide students with scaffolded instruction and feedback. "Direct Instruction" aims to accelerate learning through clear scripted direct instruction by the teacher and scaffolded practice aimed at student involvement and error reduction. "Higher Order Thinking Skills" (HOTS) is for disadvantaged students especially to engage in Socratic dialogues about ideas and strategies to solve computer game-based problems. "Knowledge Building" is a constructivist teaching approach centred on building knowledge and creating knowledge communities. (Contains 1 figure and 5 boxes.)