THE IMPACT OF EXPERIMENTAL SCIENCE METHOD TOWARD CHILDREN DEVELOPMENT: CASE STUDY OF GROUP ‘B’ STUDENT OF THE YAPITA KINDERGARTEN SURABAYA

The present study aims to examine the impact of experimental science method toward children development of group B student of Yapita Kindergarten Surabaya. The present research uses experimental research using a quantitative approach. This study is using the Nonequivalent Control Design type of Quasi Experimental, where there are two groups, which are 'the experimental group' and 'the control group'. The implementation pattern in this study uses Nonequivalent Group Design. The research sample was divided into two groups: the experimental group and the control group in which these groups have the same characteristics or almost the same. 'The experimental group' was treated with the experimental method treatment, while the 'control group' was treated with conventional learning treatment. The data is obtained from the observation sheet. The grid used was the Child Development Achievement Level (Tingkat Pencapaian Perkembangan Anak), in accordance with the cognitive development level of the Group-B students. The average score of the science development experimental group before the initial observation is 1.61, could be rounded to 2, which means that the children capabilities in mastering the numerical concept are in the 'starts to develop' category. The average score of the final observation in the experimental group is 3.67, can be rounded to 4, which means that the average children in the science development are in the 'developing very well' category. In the experimental group, the average is increased by 2.06.