Lyra presents a methodologically sophisticated analysis of the ontogenetic course of microgenetic processes in infant-caretaker interaction. The article raises important issues concerning the relationship between microgenesis and ontogenesis. Lyra’s argument that the microgenetic phase of abbreviated dialogue constitutes a seed of, or precursor to, the semiotic function is convincing. I questio...

It is generally accepted that providing explanations during a task can facilitate problem solving performance in both adults and children. This paper aims to answer two important questions. First, can current theories of explanation be generalised to children’s explanations of self-generated answers? Second, what is the impact of such self-explanation on the development of children’s analogical...

Pragmatic competence is one of the most important components of successful communication; also, it is the most difficult aspect of SLA. This study aimed to explore the effects of concurrent group dynamic assessment (G-DA) on Iranian EFL learners’ learning of requests and refusals, following a mixed method design. In the experimental part of the study, 2 intact classes were homogenized by a pret...

This document contains the following full and short papers on cognition and conceptual change from ICCE/ICCAI 2000 (International Conference on Computers in Education/International Conference on Computer-Assisted Instruction): (1) "A Method of Creating Counterexamples by Using Error-Based Simulation" (Tomoya Horiguchi and Tsukasa Hirashima); (2) "An Interactive Game System To Stimulate Word Ass...

We examined second graders' strategy discoveries on a task that could be solved either by arithmetic computation or by a simple insight. Strategy use was assessed on each trial through both an implicit measure and an explicit one. The results provided unambiguous evidence that strategies can be discovered without conscious awareness. Almost 90% of children showed the insight at an implicit, unr...