Sains education is the one of lesson that must be given for studentÂ of elementary school, but in fact, Sains education still unoptimally done. Based on datas of observation, interview, and document that be found at Kalibanteng Kidul 02 Semarang State Elementary School is showed information that there is problem with the relevance learning media is still low. So, need to be developed 3 dimension diorama media in sains education. The purpose of this research is to describe the steps of developing 3 dimesion diorama media, to know about validityÂ ofÂ 3Â dimensionÂ dioramaÂ media,Â andÂ toÂ knowÂ aboutÂ efectivityÂ ofÂ 3Â dimensionÂ dioramaÂ mediaÂ inÂ the learning.Â TypeÂ rsearchÂ isÂ ResearchÂ andÂ DevelopmentÂ (R&D)Â withÂ someÂ stepÂ areÂ praÂ research,Â collectingÂ data, preparing the media design, product validation, product reparation, small scale test,Â big scale test, and the last product.Â ResearchÂ populationÂ isÂ allÂ studentÂ ofÂ gradeÂ VÂ atÂ KalibantengÂ KidulÂ 02Â SemarangÂ StateÂ Elementary School.Â ResearchÂ sampleÂ isÂ studentÂ fÂ gradeÂ VÂ withÂ jenuhÂ sampleÂ technic.Â CollectingÂ datasÂ technicÂ are observation,Â interview,Â test,Â angket,Â andÂ documentation.Â AnalyzingÂ dataÂ technicÂ useÂ analyzingÂ productÂ data, analyzing first data/normality test, T test, and N-Gain test. The result of the research shows that 3 dimension diorama media can be used in sains educational learning with the value percentage from media specialist is 94%, content specialist is 97%, media practicy is 97%, and content practicy is 93% with Ttest result is T -assesment (7,396) is bigger than T-table (1,671) and N -Gain test result is 0,7063 with high criteria. This research conclusion isÂ effectivallyÂ beÂ usedÂ inÂ sainsÂ educationalÂ learningÂ towardÂ studentÂ learningÂ result.Â InstructionÂ forÂ theÂ next research can use 3 dimension diorama media in other lesson by adapted with component and design is related with the content that be teach.
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