Siegler Robert S, Chen Zhe
Carnegie Mellon University, Pittsburgh, PA 15213, USA.
J Exp Child Psychol. 2002 Apr;81(4):446-57. doi: 10.1006/jecp.2002.2666.
The experiments described in the lead articles replicate findings from previous studies of development of knowledge about balance scales, add several new findings, and raise four key questions: (a) How can rule use best be assessed? (b) How can we reconcile systematic use of rules with variable use of strategies? (c) When do children begin to use rules? and (d) How do children generate new rules? In this Reflection, we summarize current understanding of development of knowledge about balance scales and consider each of the four questions.
首篇文章中描述的实验重复了先前关于天平知识发展研究的结果，增加了几个新发现，并提出了四个关键问题：（a）如何最好地评估规则的使用？（b）我们如何协调规则的系统使用与策略的可变使用？（c）儿童何时开始使用规则？以及（d）儿童如何生成新规则？在这篇反思文章中，我们总结了当前对天平知识发展的理解，并思考这四个问题中的每一个。
