学困儿童和学优儿童的手书特点比较

取小学生55名,其中25名为学困生,30名为学优生,使用数码写字板测试二者在横线自然手书状态下的速度、加速度、压力、波动和断续5个指标的变化特点。研究结果表明,学困生横线手书的速度超过学优生,特别是中间速度,差异显著。学困生的加速度增长比较快,在短期内维持在高速状态,然后快速下降,学优生增长速度比较慢,但是在很长的时间内保持在高速状态,最后加速度的递减明显比学困生慢,差异显著。学困生的加速度曲线形态趋势类似于一个倒U形,而学优生的曲线形态类似于梯形。学困生和学优生的压力变化呈现开始递增、然后保持在较高的压力状态的态势,但是二者之间没有显著差异。二者的波动都出现于书写的开始阶段,但是波动次数没有显著差异。在书写过程,二者都没有出现断续。

A Comparison of Handwriting Between Talentless and Talented Primary School children

55 primary school students,25 of them being talentless and 30 being talented,were studied in terms of the velocity,acceleration,pressure,jerk and gap of their handwriting of the horizontal line in a spontaneous way.We found that the velocity especially the middle velocity,of handwriting of the talentless was much faster than that of the talented,and the difference was notable.The acceleration of the talentless increased much faster than that of the talented one,and kept this high speed for a short time,then dropped rapidly;the descending trend of acceleration of the talentless was much notable than the talented.The acceleration curve of the talentless looked like an inverse "U",but that of the talented looked like a trapezia.The pressure of two kinds of students increased rapidly at the beginning,and than maintained the high pressure for some time,but there was no notable difference between the two.All jerks appeared in the beginning phase,but the difference was not notable between the two.There was no discontinuity in their handwriting.