小学生代数运算规则的样例学习

The Pupils’ Worked-Example Learning About the Algebraic Operation Rules

采用完整或不完整样例，对180名六年级小学生用样例学习两种代数运算规则进行了实验研究。结果显示：多数被试难以学会“平方差”运算规则，只有少数被试学会了“完全平方和”运算规则；反馈对不完整样例的学习效果有促进作用；用不完整样例学习难度不同的规则，其效果不同；在无反馈条件下，完整样例的学习效果都好于不完整样例；在有反馈的情况下，只有删除一步运算步骤样例的学习效果比完整样例的学习效果好。

It is a primary way for students to learn mathematical rules by worked-examples. But there was inconsistent agreement on the effects of non-complete worked-example learning. Pass（1992） found that there were not significant different effects between non-complete worked-example learning and complete worked-example learning， while Stark（1999）got that the effects of complete worked-example learning were better than non-complete worked-example learning. Therefore， the present study focused on the pup