5-6岁儿童多单位量比较能力的发展特点

Development of Ability to Compare Multi-Units Quantities in 5-to-6 Olds

通过计算机呈现任务和记录反应,对5岁、5岁半和6岁儿童解决多单位量比较问题的正确率和反应时进行了考察。研究结果表明:(1)6岁之前的儿童难以正确解决多单位量比较问题,从6岁开始,儿童开始逐渐掌握这种问题的解决方法;(2)在解决多单位量比较问题时,儿童采用了比较较高级单位的策略,而没有对每个单个物体进行计算;(3)进位规则没有对儿童解决多单位量比较问题的正确率和反应时产生显著影响。

The present study investigated how children compare object collections with more than one unit. 36 children aged from 5 to 6 participated in this study. We used computer to present the questions and record children＇ s answer and response time. The results were as follows： （ 1 ） Children could hardly compare multi-units quantities until 6 year old ; （ 2 ） Children compared the superior units rather than counted the sum of single units when they compared two collections with more than one unit. （3） Children＇ s performanee was similar in tasks with carry rules based on ten and based on eight