Vicente Santiago, Orrantia Jose, Verschaffel Lieven
University of Salamanca, Spain.
Br J Educ Psychol. 2007 Dec;77(Pt 4):829-48. doi: 10.1348/000709907X178200.
Studies on rewording word problems can be grouped into two main groups: situational rewording, in which the situation denoted by the text is described more richly, and conceptual rewording, in which the underlying semantic relations are highlighted.
Our aims are to define and distinguish these two kinds of rewording and to test empirically their relative effectiveness in two different studies.
In the first study, 79 third graders, 64 fourth graders and 65 fifth graders took part; the sample for Study 2 was similar.
In Study 1, children were asked to solve both easy and difficult two-step change problems in three different versions: standard, situational and conceptual rewording. In Study 2, three different versions of the situational version were compared: one with only temporal elaborations, one with only causal elaborations and a 'complete' version combining both elaborations.
In Study 1, conceptually reworded problems elicited the best results, especially among younger children and for difficult two-step problems. Neither in Study 1 nor in Study 2 did the situationally reworded problems yield better performance than standard items.
Only conceptual rewording has proved to be useful for improving children's performance, especially among younger children and for difficult problems. The lack of impact of situational rewording cannot be explained in terms of the length of the resulting text.
关于改写应用题的研究可分为两大类:情境改写,即对文本所描述的情境进行更丰富的描述;概念改写,即突出潜在的语义关系。
我们的目的是定义和区分这两种改写方式,并通过两项不同的研究对它们的相对有效性进行实证检验。
在第一项研究中,79名三年级学生、64名四年级学生和65名五年级学生参与其中;第二项研究的样本与之类似。
在研究1中,要求孩子们解决简单和困难的两步变化问题的三种不同版本:标准版本、情境改写版本和概念改写版本。在研究2中,比较了情境版本的三种不同形式:一种只有时间详述,一种只有因果详述,以及一种结合了两种详述的“完整”版本。
在研究1中,概念改写的问题产生了最好的结果,尤其是在年幼的孩子中以及对于困难的两步问题。在研究1和研究2中,情境改写的问题都没有比标准题目产生更好的表现。
只有概念改写已被证明对提高孩子们的表现有用,尤其是在年幼的孩子中以及对于困难的问题。情境改写缺乏影响不能用由此产生的文本长度来解释。