Mathematics is an important school subject but one which often poses problems for learners. It has been found that learners do not possess the cognitive capacity to handle understanding procedures, representations, concepts, and applications at the same time. while the extent of field dependency may hold the key to one way by which the working…

The purpose of this study was to assess how attachment dimensions (anxiety and avoidance), self-esteem, and three subscales of test anxiety--cognitive obstruction, social derogation and tenseness are related in two age groups: adolescents and college students. Participants (N?=?327) completed relevant questionnaires. Results showed that college…

This study reports on our steps toward achieving a conceptually coherent and empirically validated learning progression for carbon cycling in socio-ecological systems. It describes an iterative process of designing and analyzing assessment and interview data from students in upper elementary through high school. The product of our development…