Analisis Kesalahan Siswa Dalam Menyelesaikan Soal Matematika Tipe Higher Order Thinking Skill (HOTS) Pada Pokok Bahasan Aritmatika Sosial Kelas VII SMP

The problem of the difficulty of his students understand mathematical materials such as HOTS-shaped matter taken from social arithmetic material, resulting in students make mistakes in solving the problem. Through the analysis of newman error will be obtained a detailed picture of the mistakes made by students and the factors that cause errors. This study aims to describe errors made by students in solving the problem of HOTS social arithmetic material and describe the factors that cause the error. The type and design of this research is descriptive qualitative research, involving 31 students of class VII J SMP Negeri 2 Mojolaban. Technique data that is done is test and interview method. Data analysis techniques used are data reduction, data presentation and conclusions. Validity of data using triangulation technique that is from test result and interview. Result of research indicate that type of error tends to be done by student, (1) analyze aspect that is transformation error and process skill mistake, (2) evaluate aspect that is error of understanding and mistake of transformation, while (3) aspect create transformation mistake. Factors that cause errors are (1) aspects of analysis: not exactly in choosing the operation used the problem, the accuracy of students who are still lacking and the students are less careful in doing the calculations. (2) aspects of evaluating: students do not master the prerequisite material well, forgot to write a profit formula and students do not know the percentage formula profit. (3) the aspect of creating the cause is the difficulty in the calculation process