Since the 1990s, researchers have increasingly drawn attention to the multiplicity of representations used in science. This issue of "RISE" advances this line of research by placing such representations at the centre of science teaching and learning. The authors show that representations do not simply transmit scientific information; they are…

This brief report describes the Rosetta Stone Language Library, a set of multimedia second language instructional materials. These materials emphasize comprehension of spoken language as the first step to acquiring fluency, sometimes referred to as the "comprehension approach" or "natural approach." The materials are designed…