Second-order covariation is a form of mathematical reasoning that needs to be characterized both concerning students' cognitive processes and the design of tasks that promote it. This contribution aims to shed light on these two issues by comparing data related to the same learning experiment performed in two different learning environments:…

This paper summarizes our present knowledge and understanding of the processes and outcomes of learning. The basic idea about learning is that the outcomes of learning (e.g., propositional knowledge, procedural skills, and mental models) reflect differences in learning processes (e.g., encoding skills, attention allocation, and hypothesis…