Visual displays, such as illustrated web pages, animations, and simulations, can both aid and pose challenges for learners. The first generation of educational research on visuals focused on the basic processes underlying comprehension. A second generation of research tested various instructional supports for visual displays, and this research was…

This experimental study evaluated the effectiveness of a research-based intervention, schema-based instruction (SBI), on students' proportional problem solving. SBI emphasizes the underlying mathematical structure of problems, uses schematic diagrams to represent information in the problem text, provides explicit problem solving and metacognitive…