While many view learning as a process of reducing learners' uncertainty, research suggests that instruction that is uncertain can promote learning and transfer better than instruction that is certain. In addition, research on curiosity suggests that uncertainty is a key trigger of curiosity, which in turn can facilitate learning. However,…

Within the same learning context, learners' outcomes in terms of oral fluency vary greatly. This study tracked the relative contributions that first language (L1) and initial second language (L2) fluency skill and working memory (WM) made to L2 fluency development. We assessed the performance of French-speaking Grade 6 learners' (n = 47, mean age:…

This study investigated the extent to which explicit and implicit instruction improve L1-Arabic speakers' articulation of English words whose cognates were acquired earlier in their L2 French. Sixty-eight secondary school students, explicit (n=35) and implicit (n=33), participated in a programme incorporating focus-on-pronunciation activities,…

This study investigates the role of previously acquired linguistic systems, Mazandarani and Persian, in the acquisition of third language (L3) English at the initial stages. The data have been obtained from 31 students (age 13-14 years), testing the placement of attributive possessives in a grammaticality judgment task, an element rearrangement…

Working memory (WM) is a cognitive system that strongly relates to a person's ability to reason with novel information and direct attention to goal-relevant information. Due to the central role that WM plays in general cognition, it has become the focus of a rapidly growing training literature that seeks to affect broad cognitive change through…

Findings from an on-going design experiment within a year-long graduate course for middle school teachers of mathematics are reported. The purpose of the course was to help teachers assist students in transitioning from arithmetic to algebraic reasoning. Goals included developing teachers' ability to interpret, compare, and generalize across…