A learner-centered tool for students building models

Through redefining the modeling task and applying learner-centered design techniques, a new tool, Model-It, was created which demonstrates that modeling can be made accessible to high school students. The approach to learner-centered design focuses on the implementation of scaffolding in software, to address the unique needs of learners. Scaffolding is an educational term that refers to providing support to learners while they engage in activities that are normally beyond their abilities. Three key scaffolding strategies are identified, informed by educational and psychological theories of learning. Their implementation in Model-It is discussed.