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This study is aimed at analyzing students' mathematical communication skills based on the results of observations, namely the ability of junior high school students. Subjects consisted of 20 students with categories using high, medium, and low grades. The method used is the Problem Based Learning approach. Data obtained from student results because of student tests and how students in finding mathematical communication solutions students who can solve problems and can solve mathematicaldoi:10.22460/jpmi.v2i5.p301-306 fatcat:as55w33ymvgd5h7a74nhinyfni