ABSTRAKPenelitian ini bertujuan untuk meningkatkan kemampuan menyelesaikansoal cerita pecahan pada pembelajaran matematika siswa kelas IV SD Negeri Sindon2, Ngemplak, Boyolali tahun ajaran 2014/2015.Penelitian ini merupakan Penelitian Tindakan Kelas (PTK). Penelitiandilaksanakan dalam dua siklus. Setiap siklus terdiri atas perencanaan, pelaksanaantindakan, observasi dan refleksi. Subjek penelitian adalah siswa kelas IV SD NegeriSindon 2 Ngemplak, Boyolali yang berjumlah 28 siswa. Sumber data yangdigunakan berupa informasi dari narasumber yaitu guru kelas IV, hasil observasiproses pembelajaran dan data berupa nilai pembelajaran matematika tentangkemampuan menyelesaikan soal cerita pecahan dengan metode Problem SolvingLearning (PSL). Teknik pengumpulan data adalah dengan observasi, wawancara,tes, dan dokumen. Validitas data menggunakan triangulasi sumber dan triangulasiteknik. Teknik analisis data yang digunakan adalah model analisis interaktif melaluireduksi data, sajian data, dan penarikan simpulan atau verifikasi. Prosedur penelitianmenggunakan model spiral yang saling berkaitan.Hasil penelitian menunjukkan bahwa penggunaan metode Problem SolvingLearning (PSL) dapat meningkatkan kemampuan menyelesaikan soal cerita pecahandari kondisi awal, siklus I dan siklus II. Hal ini dapat dibuktikan denganmeningkatnya persentase observasi aktivitas siswa pada aspek keaktifan, kerjasama,suasana, dan kesungguhan menyelesaikan soal pada siklus I dengan skor 2,65 danmeningkat pada siklus II dengan skor 3,425. Hasil kemampuan menyelesaikan soalcerita pecahan dibuktikan dengan perolehan nilai rata-rata hasil tes awal sebelumtindakan (prasiklus) 61,12 dengan ketuntasan klasikal 39,28%, meningkat padasiklus I nilai rata-rata kelas mencapai 64,75 dengan ketuntasan klasikal 64,29%.Meningkat lagi pada siklus II nilai rata-rata kelas meningkat menjadi 79,00 denganketuntasan klasikal 89,28%. Simpulan penelitian ini menyatakan bahwa penggunaanmetode Problem Solving Learning (PSL) dapat meningkatkan kemampuanmenyelesaikan soal cerita pecahan pada pembelajaran matematika siswa kelas IVSD Negeri Sindon 2, Ngemplak, Boyolali tahun ajaran 2014/2015.Kata kunci: Menyelesaikan soal cerita pecahan, Problem Solving Learning(PSL), Pembelajaran MatematikaABSTRACTThe purpose of this research is to improve ability to solve fraction storyquestion in mathematics learning on the fourth grade students of Sindon 2 StateElementary School, Ngemplak, Boyolali in academic year 2014/2015.This research is classroom action research (CAR). This research is held intwo cycles. Each cycle consists of planning, action implementation, observation, andreflection. The subject of this research is the fourth grade students of Sindon 2 StateElementary School, Ngemplak, Boyolali which consists of 28 students. The datasource used in this research is information from informant who is the fourth gradeteacher, the result of learning process observation and the data in form ofmathematics learning grades about improve solve fraction story question by ProblemSolving Learning (PSL) method. The data collection techniques are by usingobservation, interview, test, and documentation. The data validity is by using sourcetriangulation and technique triangulation. The data analysis technique is by usinginteractive analytic model by data reduction, data display, and conclusion drawing orverification. The research procedure is by using interconnected spiral model.The result of the research shows that by improvement applying ProblemSolving Learning (PSL) method can be the ability to solve fraction story questionfrom the initial condition, the first cycle, and the second cycle. It can be proved bythe improvement of the percentage of student’s activity in the following aspects:activity, cooperation, atmosphere, and the sincerity in solving problems in the firstcycle with skor 2,65 and the second cyclewith skor 3,425. The result of the ability tosolve fraction story question is proved by the acquired average grade in beforeaction test (pre-cycle) that is 61.12 with the classical passing grade 39.28%, in thefirst cycle the average grade of the class increases to 64.75 with the classical passinggrade 64,29%. After the action in the second cycle, the average grade of the classincreases to 79,00 with the classical passing grade 89,29%. The conclusion of thisresearch explain that the application of Problem Solving (PSL) method can improvethe ability to solve fraction story question in mathematics learning on the fourthgrade students of Sindon 2 State Elementary School, Ngemplak, Boyolali inacademic year 2014/2015.Keywords: Solving fraction story question, Problem Solving Learning (PSL),Mathematics Learning