中文摘要：

本研究对105名智力障碍儿童进行数字符号辨认、实物-符号以及符号-实物测查,考察儿童对数字符号的辨认与理解能力的发展特点。结果表明：智力障碍儿童对数字符号的辨认能力优于理解能力;对数字符号的辨认能力随着学段的升高而逐渐增强;对数字符号的理解能力在中年级迅速发展,到高年级时趋于稳定。

英文摘要：

105 children with intellectual disabilities were individually tested to examine the development characteristics of the recognition and understanding of numerical symbols. The result indicated that children＇s performance on recognizing numerical symbols was better than their performance on understanding numerical symbols. The performance of recognition of numerical symbols enhanced with grade. The middle grade was a period of rapid development of understanding of numerical symbols, while the high grade is a stable period.