Motor Development of Normal Children

The goal of this type of study: observational study is to compare motor development between urban and rural regions in pre-school age children. The main questions it aims to answer are: * Is there difference in gross motor development of normal children aged from four to six years between urban and rural areas? * Is there difference in fine motor development of normal children aged from four to six years between urban and rural areas? Participants will be asked to perform tasks of bruininks-oseretsky test of motor proficiency, second edition. Researchers will compare urban group and rural group to see if there is any difference in motor development.