The focus of the current proposal is to examine the effect of two dynamic simulations on the participants' conceptions of rate of change. Conceptions of rate of change were measured according to Carlson et al.'s (2002) Mental Actions framework and how the participants related the physical simulations to the graphical representations (Heid, et al.,…

Technological developments are impacting upon UK assessment practices in many ways. For qualification awarding bodies, a key example of such impact is the ongoing shift towards examiners marking digitally scanned copies of examination scripts on screen rather than the original paper documents. This digitisation process has obvious benefits,…

Dual-enrollment programs allow high school students to enroll in college-level classes to gain college and high school credit concurrently. Research on how online, dual-enrolled high school students (DES) construct knowledge when compared with online community college students (CCS) is needed to help administrators determine the design,…