数学不良儿童的画画运动功能

Drawing Motor Control Functions of Children with Mathematical Disabilities

取小学生48名,其中24名为数学不良(mathematical disabilities,MD)儿童,24名为一般儿童,使用数码写字板,分别测试二者顺向数数和顺向递加3数数的同时,画一条带有四个圆环的连续弧线的速度、加速度。结果表明:(1)顺向数数时,MD儿童画画的平均速度、加速度与一般儿童一致,两者的差异不显著;(2)顺向递加3数数时,MD儿童画画的总体平均速度、加速度均明显慢于一般儿童,两组的差异显著。结论:(1)顺向数数时,MD儿童和一般儿童的画画运动控制特征相同;(2)顺向递加3数数时,MD儿童的运动控制特征降低。

To explore drawing motor control characteristics of children with mathematical disabilities（MD）. Methods： 24 MD children and 24 average achievements peers were collected. A child wrote arc line with four circles under simultaneous digit counting forward and counting forward by plus threes conditions, a digitizing tablet was used to record the drawing movements＇ velocity and acceleration. Results： （1）Drawing under counting forward condition, the velocity and acceleration values of the MD children were basically the same with those of their peers. （2）Drawing under counting forward by plus threes condition, the ve- locity and acceleration values of the MD children were significantly different from those of their peers, and their velocity and acceleration values were decreased remarkably. Conclusions： （1）MD children and their peers had the same drawing motor control characteristics under the first condition. （2）MD children de- creased their drawing motor control characteristics under the second condition.