Pre-service teachers in primary education often have difficulty in solving mathematical problems, specifically fractions that are presented with a picture. In solving problems, some thought processes are needed by the teacher to reduce students' cognitive barriers. Therefore, this study aimed to reveal the cognitive barriers experienced by students in solving fraction problems. The cognitive barriers referred to in this study are ways of thinking about structures or mathematical objects that are appropriate in one situation and not appropriate in another situation. This study employed a descriptive-qualitative method. Furthermore, participants were followed up with in-depth semi-structured interviews to find out the cognitive barriers that occurred in solving fraction problems. This study discovers that the participants, in solving fraction problems, experienced all indicators of cognitive barrier and two cognitive obstacles are found as new findings that tend to involve mathematical calculations and violates the rules in dividing images into equal parts in the problem-solving procedure.

Guru profesional harus memiliki 4 kompetensi, salah satunya yaitu  kompetensi pedagogik, dalam kompetensi pedagogik, salah satu aspek yang harus dimiliki oleh seorang guru yaitu dalam melakukan penilaian dan evaluasi. Hal ini mengacu pada Permendikbud No. 66 tahun 2013 bahwa penilaian yang dibuat harus berdasarkan acuan penilaian bagi pendidik, satuan pendidikan dan pemerintah pada satuan pendidikan dasar dan menengah. Berdasarkan wawancara dengan guru-guru di SDN 004 Malinau Barat,  terdapat permasalahan dalam pembuatan soal. guru belum mengikuti kaidah penulisan soal, hal itu menyebabkan hasil belajar siswa belum sesuai dengan kompetensi yang diharapkan. Pelatihan Pengabdian Masyarakat menggunakan metode ceramah, penugasan dan diskusi serta pendampingan pembuatan kisi-kisi soal dan penyusunan soal. Langkah-langkah kegiatan yaitu dengan pelatihan berupa teori, penugasan secara mandiri dan diskusi. Sasaran kegiatan ini adalah guru-guru sekolah dasar di Kabupaten Malinau. Data angket yang diberikan kepada peserta menunjukkan bahwa 58,3% merupakan hal yang baru, 75 % pelatihan ini sangat membantu dalam pelaksanaan tugas, 100% peserta memperoleh tambahan pengetahuan dan keterampilan dan pelatihan sangat efektif. 91,3% mengatakan waktu seimbang dengan materi dan, dan 100% menyatakan perlu ada pelatihan lanjutan.

One of the courses have often difficult by pre service teacher in primary education is Geometry, evidently by learning outcome that are still low. Difficulties experienced by students led to an error occurred in solving problem in geometry. Errors that occur when students solve problems in geometry really need to be known, especially the type of error. One of procedure that can be used to reveal the student error is Newman procedure. This research employed a descriptive qualitative method that aimed to analyze the errors of pre service teacher in primary education when solve the problems in geometry.  Participants in this research were two students who have taken the courses of Geometry and meet the criteria which is experiencing a mathematical error. Data collection technique use a question sheet and interviews. Question sheet given in order to analyze student errors that appear. While the interviews were conducted to confirm the results of student work. The results showed that the four stages of the procedure of Newman Error Analyze that comprehension, transformation, process skill and encoding occur mathematical error, logical error and strategic error. Furthermore, as new findings in this research, the error experienced by the students at this stage of the procedure Newman can cause errors in the later stages.

The teacher’s attitude towards mathematics teaching is seen as an essential factor in forming students’ attitudes towards mathematics. However, no one has extensively described the reflection of teachers’ self-confidence in teaching mathematics, especially for novice primary teachers. Therefore, the purpose of this study sought to describe a reflection of the self-confidence attitude of novice primary teachers in teaching mathematics. A questionnaire based on novice primary teachers’ teaching experience was administered to a total of 28 novice primary teachers (N = 22 males, N = 6 females) conveniently selected to participate in the study reported in this article. The semi-structured interviews data explored novice primary teachers’ reflections on the given questionnaire scale items. The qualitative data obtained from semi-structured interviews informed the quantitative information extracted from the questionnaires. The results showed that the reflection of the self-confidence attitude of novice primary teachers in low, moderate, and high participants on the scale of confidence in teaching mathematics raises three essential findings, specifically (1) ability on content knowledge, (2) ability to explain, and (3) ability in classroom management. The resulting reflection in low, moderate, and high participants on the scale was an attitude toward success in teaching mathematics, namely, the appraisal of others, and on the scale, the usefulness of mathematics teaching, namely the ability to understand the usefulness of mathematics.

Penerapan literasi selama proses pembelajaran tidak hanya fokus pada peran para peserta didik semata. Akan tetapi, guru juga memiliki kapasitas sebagai fasilitator yang memiliki tugas penting dalam membantu dan mendorong meningkatkan budaya literasi di lingkungan pendidikan, khususnya dalam proses pembelajaran, Tujuan dilaksanakan pengabdian ini adalah untuk menerapkan inovasi dalam pembelajaran berupa pembelajaran yang berbasis literasi dasar dan literasi matematika model PISA ke dalam perangkat pembelajaran dan mengimplementasikannya dalam proses pembelajaran di kelas. Target dan luaran dari kegiatan pengabdian ini adalah peningkatan pemahaman dan pengalaman guru dalam menciptakan pembelajaran yang berbasis literasi dan menghasilkan perangkat pembelajaran berupa RPP dan media pembelajaran berbasis literasi dalam bentuk big book. Pelaksanaan kegiatan in house training pengembangan kompetensi guru melalui pemaanfaatan literasi ini melalui tahapan 1) pemberian informasi dalam bentuk workshop, 2) pendampingan penyusunan RPP, media big book dan penilaian dan 3) implementasi perangkat pembelajaran yang telah disusun.