The mental models of both novice and advanced chemistry students were observed while the students performed a periodic table activity. The mental model framework seems to be an effective way of analyzing student behavior during learning activities. The analysis suggests that students do not recognize periodic trends through the examination of…

Help-seeking has become a topic of growing interest in the past 5 years for educators and psychologists concerned with the development and enhancement of children's active learning skills. This paper explains the instrumental role of help-seeking in learning. Major conceptualizations of help-seeking are examined and evaluated for their utility in…