Previous research on multiple external representations (MER) indicates that sequencing representations (compared with presenting them as a whole) can, in some cases, increase conceptual understanding if there is interference between internal and external representations. We tested this mechanism by sequencing different combinations of scientific…

The current use of two sets of units in the UK continues to be a source of muddle and confusion. Young people are taught metric (SI) units in school but, in the outside world, still have to contend with units such as inches, feet, pounds, stones and miles. Specialist teachers and practitioners of the sciences are not blameless. This paper…

AN EXPLORATORY STUDY WAS CONDUCTED ON THE INTERACTION BETWEEN COGNITIVE APTITUDES AND VARIED INSTRUCTIONAL TREATMENTS (TEACHING MATERIALS AND TEACHER METHODS) TO DETERMINE IF LEARNING DIFFICULTIES COULD BE SIGNIFICANTLY MINIMIZED BY ALTERING THE CONTENT OF INSTRUCTIONAL TREATMENTS TO FIT THE COGNITIVE APTITUDE PATTERNS OF INDIVIDUAL LEARNERS. THE…