儿童内包量概念发展的实验研究

A RESEARCH ON THE DEVELOPMENT OF CHILDREN'S INTENSIVE QUANTITY CONCEPTS

以 2～ 5年级学生为被试 ,系统探讨了儿童速度、浓度内包量概念的发展。研究发现 :( 1)儿童的内包量概念发展要经历四个阶段 ;( 2 )儿童速度概念的形成早于其浓度概念的形成 ;( 3)调整任务在儿童解决速度内包量问题中优于比较任务 ;( 4)儿童解决内包量概念问题的策略经历从单维向双维。

This study was concerned with the development of the intensive quantities of rate and consistency of children from grades 2 to 5. The results showed: 1)The development of children's intensive quantity covered four phases; 2) The development of the intensive quantity of rate came into being earlier than that of consistency; 3) Adjustment tasks were more effective than comparison tasks;4)Children's strategies of solving intensive quantity concept underwent two changes: from the single dimensional strategy to the double dimensional strategy, and from the law of addition to the law of multiplication.