<![CDATA[The purpose of this resreach is to determine the effect of environmental concept based PjBL (Project Based Learning) models to the observation skills of VII grade students at SMPN 1 Jenangan. This resreach was quantitative descriptive by Nonequivalent Control Group Design. The samples of this resreach were VII C (experimental) and VII D class (control) with a total 50 students. The instrument of this research was essay test. Essay test was applied before and after imlplementation of environmental concept based PjBL model. Data were analized by t-test using software minitab. The result showed that the P-value was 0,000; due to P-valu less than 0.05, so H0 was rejected. Its mean that, there was a significant differences between the student observations skills that use environmental concept based PjBL (Project Based Learning) models with the students observations skills that PBL (Problem Based Learning) model at SMPN 1 Jenangan.]]>
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