This study attempted to determine the influence of prior knowledge in mathematics of students on learner-interface interactions in a learning-by-teaching intelligent tutoring system. One hundred thirty-nine high school students answered a pretest (i.e., the prior knowledge in mathematics) and a posttest. In between the pretest and posttest, they…

The comprehension of interdependent complex systems, which is part of state and national standards, is an enormous challenge for learners. In traditional physiology teaching materials, which structure the human body into decoupled subsystems (e.g., respiratory and cardiovascular) isolated in separate chapters, there is a ubiquitous absence of…