Modeled after NCTM's best-selling book, "5 Practices for Orchestrating Effective Mathematics Discussions," this new book features task-based discussions in science. Robust and effective classroom discussions are essential for providing students with opportunities to simultaneously engage in science practices while learning key science content. Using numerous examples and science learning tasks, the authors show how teachers can plan the lesson to encourage students to not only learn science content but employ disciplinary practices as well.
http://www.nctm.org/catalog/product.aspx?id=14576