心算困难儿童的语音复述

The Phonetic Rehearsal of Children with Mental Arithmetic Difficulties

心算中语音复述和计算加工交替进行,其中任何一方面落后都会导致心算困难。使用视觉心算成绩和听觉心算成绩相减的范式,研究计算能力正常但心算水平落后的儿童的语音复述水平。结果发现,不同年级心算困难儿童呈现不同的困难模式,2、4年级心算困难儿童语音复述水平正常,但由于语音工作记忆容量的落后,导致缺少足够的注意资源进行计算加工。3年级心算困难儿童在语音工作记忆容量和语音复述上都存在落后,导致心算困难,呈现出双重困难模式。

Phonetic rehearsal and numberation are alternate in the course of mental arithmetic. The lagging behind of each part will result in the difficulty of mental arithmetic, Regarding the difference of visual and auditory aehivement as the index of the phonetic rehearsal level, we investigated the phonetic rehearsal level of children with mental arithmetic difficulties. The results showed that the difficulty pattern varied with the grades. For 2nd and 4th grades of children with mental arithmetic difficalties, their phonetic rehearsal worked well, but their working memory capability was low, and attentive resource was indequate. For 3rd grade of children with mental arithmetic difficulties, both their phonetic rehearsal and capability fell behind.