One hundred forty fourth graders were asked to solve proportion problems about juice-mixing situations both before and after an intervention that used a manipulative model or other materials in three experiments. Results indicate different approaches appear to be necessary to facilitate children's proportional reasoning, depending on the reasoning…

Effectiveness of a classwide peer tutoring program was studied for low achievers with and without learning disabilities and average achievers in 20 elementary school intervention classes and 20 control classes. All types of learners in peer tutoring classrooms demonstrated greater reading progress regardless of which of three measures was used.…