### PENERAPAN PROBLEM BASED LEARNING (PBL) TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA

#### Abstract

** **

*The study aim*

*ed*

*to: (1) test and analyze the learning completenesst of student’s mathematical problem solving ability in PBL, (2) know student’s mathematical problem solving ability in PBL more than student’s mathematical problem solving ability in conventional learning, and (3) know the improvement of student’s mathematical problem solving ability in PBL. The research design*

*was*

*quasi experimental with nonrandomized control group, pretest-postest design. The population of this study*

*were*

*all of students of SMA Negeri 1 Gondang (Senior High School)*

*sitting*

*in*

*the 10*

^{th}grade.*The s*

*ampling technique*

*was*

*purposive samplin*

*g;*

*selected XH*

*were*

*as*

*a*

*control group and XA as experimental group.*

*The*

*data were obtained with the test method.*

*Sample groups*

*were*

*pretested and posted with the same instrument*

*s*

*. The conclusions are: (1) the mathematical problem solving ability of the students in PBL reaches completeness (87.5%) with a return limit of 75%; (2) student's mathematical problem solving ability in PBL (average 75.39)*

*is better t*

*than student’s mathematical problem solving ability in conventional learning (average 69.62); and (3) student’s mathematical problem solving ability in PBL increase*

*s*

*by 0.67 (medium).*

* *

#### Keywords

problem solving ability, PBL

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**LP3M Unika Widya Mandala Madiun**

lp3m@widyamandala.ac.id