Rancang Bangun Virtual Laboratory Pemuaian untuk SMP

Abstract

This paper describes the development of Virtual Laboratory for simulation lab expansion (VL- Expansion) at Junior High School (SMP). The reason of building VL- Expansion is the demands science teaching in the schools which are able to construct mastery of concepts and critical thinking skills within an effective and an efficient. Based on the preliminary studies in several junior high school in Bandung found that: 1) the number of tools to support the expansion practicum available in laboratories is still limited, 2) practical implementation of such material is infrequency performed, while the practical implementation can build mastery of concepts and critical thinking skills. On the other hand, schools (SMP) have a lots of the computer lab facilities. Nevertheless, in fact it was never done for the science lab. The development steps were conducted, there were: 1) analysis of the concept and indicators of critical thinking skills, 2) analysis of the working principle Muschenbroek, 3) extracting the fundamental concepts and phenomena of expansion for various metals, 4) design prototypes VL- Expansion. Thus, the results of the test to the teachers revealed that the VL-Expansion is feasible to be used to construct mastery of concepts and critical thinking skills junior high school students.