Despite the importance of parallelism concept in understanding advanced geometric concepts, past studies have constantly reported poor mastery of this concept. To pinpoint students' current states in the progression of parallelism concept acquisition, this study aimed to profile students' knowledge states and model their learning pathways.…

In most mathematics textbooks, each lesson is followed by a set of homework problems in one of two ways -- blocked practice and mixed practice. Additionally, most mathematics textbooks rely on a common learning strategy called overlearning, that is, mastering a skill and continuing to practice this same skill. This study investigated the effects…