Tujuan penelitian ini adalah untuk mengetahui pengaruh model pembelajaran double loop problem solving terhadap penalaran  matematis siswa pada materi bangun ruang. Pada penelitian ini ditarik sampel sebanyak dua kelas, dengan jumlah peserta didik sebanya 67 peserta didik. Penelitian ini merupakan penelitian eksperimen dengan rancangan yang digunakan adalah eksperimen semu (Quasi Exsperimental Research) .Penelitian ini melibatkan dua kelas yaitu kelas eksperimen dan kelas kontrol, dimana kedua kelas ini diberikan perlakuan yang berbeda. Untuk mengetahui pengaruh model pemelajaran double loop problem solving terhadap penalaran matematis siswa kelas VIII SMP Negeri 3 Campalagian. Dilihat pada pengujian hipotesis dilakukan dengan melihat hasil uji-t. Berdasarkan uji-t diperoleh nilai  sebesar 2,204. Sedangkan untuk nilai  sebesar  yang berarti bahwa  yaitu . Hal ini menunjukkan bahwa  ditolak dan  diterima, bila ditinjau dari nilai taraf signifikan,  diterima apabila Sig <   yaitu 0,032 < 0,05. dengan demikian dapat disimpulkan bahwa pembelajaran dengan Penerapan model pemelajaran double loop problem solving terhadap penalaran matematis dalam Pembelajaran Matematika Pada Peserta didik kelas VII SMP Negeri 3 Campalagian, berpengaruh terhadap hasil belajar siswa, dalam pelaksanaan pembelajaran dan pengamatan aktivitas siswa. Sehingga bisa diterapkan di sekolah.

This research is an experimental study that aims to see the effectiveness of instructional media based on Mandar culture, in this case, lipa ’ sa’be Mandar. The instrument used in this study was a test to measure the ability of mathematical representations, student activity observation sheets, and student responses to learning. The subjects of this study were 30 students of class X TKJ SMK Mega Link Majene. The data analysis used is descriptive and inferential statistical analysis. The analysis results showed that the average value of the students’ mathematical representation ability was 90.97 in the medium category. Student activities are in the very active category, namely 80%, and student responses to learning give a very positive response of 80%. The t-test shows the value of sig. (2-tailed) = 0,000 < α = 0,05, thus the application of lipa’ sa’be Mandar learning media is effective on students’ mathematical representation abilities.

Penelitian ini bertujuan untuk meningkatkan kemampuan representasi matematis siswa di SMK Mega Link Majenemelalui media pembelajaran lipa’ sa’be Mandar.Jenis penelitian ini merupakan penelitian tindakan kelas yang dilaksanakan selama 2 siklus yang meliputi empat tahapan yaitu perencanaan, pelaksanaan observasi dan evaluasi serta refleksi.Teknik analisis menggunakan analisis statistika deskriptif. Hasil penelitian diperoleh nilai rata-rata kemampuan representasi matematis sebesar 82,65 dengan standar nilai KKM sebesar 70. Sedangkan nilai ketuntasan secara klasikal sebesar 84,21% dengan standar 80%. Aktivitas siswa dan keterlaksanaan guru dalam menerapkan pembelajaran melalui media lipa’ sa’be Mandar berada pada kategori terpenuhi.Berdasarkan hasil penelitian, maka disimpulkan penerapan media pembelajaran lipa’ sa’be Mandar mampu meningkatkan kemampuan representasi matematis siswa SMK Mega Link Majene.Kata kunci: Representasi Matematis, Media Pembelajaran, Lipa’ Sa’be Mandar This research aims to improve the ability of mathematical representation of the students in SMK Mega Link Majene through the media learning Lipa ' Sa'be Mandar. This type of research is a class action study conducted during 2 cycles that includes four phases, namely planning, observation and evaluation and reflection. Analytical techniques using descriptive statistical analysis. The results of the study obtained an average value of the mathematical representation capability of 82,65 with a standard KKM value of 70. Meanwhile, the classifications of the classic value of 84,21% with standard 80%. Student activity is in very active category. The implementation of researchers in applying learning through Media lipa ' sa'be Mandar well done. Based on the results of the research, it was concluded the application of learning Media lipa ' sa'be Mandar able to improve the mathematical representation capability of SMK Mega Link Majene.Keywords: Mathematical Representation, Media Learning, Lipa' Sa'be Mandar

This type of research uses Classroom Action Research using two cycles. Each cycle consists of 4 stages, namely 1) action planning, 2) action implementation, 3) observation, 4) reflection. The purpose of this research is to improve the Problem Based Learning model through a scientific approach. The location of the research was carried out at the Islamic Elementary School 34 Al Azhar Makassar, South Sulawesi Province, class VI with 26 students with 16 male students and 11 female students. In the first cycle the percentage level is 57.69 with a frequency value of 15 in the incomplete category, the percentage level is 42.31 with a frequency value of 11 in the complete category. In cycle II the percentage level is 11.53 with a frequency value of 3 in the incomplete category, the percentage level is 88.47 with a frequency value of 23 in the complete category. The results of the qualitative and quantitative data show that the mathematics learning outcomes of SD Islam 34 Al Azhar Makassar on the Problem Based Learning model through a scientific approach there is an increase in student learning outcomes.