The purpose of this study is to design a digital module based on mathematical communication skills. This a development research which is carried out to determine the use of poor learning media and students’ low comprehensive skills in understanding mathematical topics associated with relations and functions. One of the solutions used to overcome this problem is by designing a digital teaching module using media. The research and development method consisting of Analysis, Design, Development, implementation, and Evaluation (ADDIE), were used to carry out this study. The results showed that the digital module is highly valid with a total expert validation of 95.1% and in the very good category. Also, the students' response to the digital module is in the very good category, with a total response criterion of 89.8%. Therefore, the designed digital module has the ability to improve students' independence in learning because its use is not limited to classrooms.

Abstrak. Penelitian ini bertujuan (1) mengembangkan materi ajar media pembelajaran berdasarkan kearifan lokal, dan (2) mengetahui kualitas dan kelayakan bahan ajar berbasis ahli material, pakar media, peer reviewer, dalam hal ini adalah dosen media/multimedia belajar matematika. Model pengembangan yang digunakan untuk mengembangkan perangkat pembelajaran, dalam penelitian ini adalah memodifikasi dari model yang dikenal dengan Model 4D. Modifikasi yang dilakukan adalah penyederhanaan model dari empat tahap menjadi tiga tahap, yaitu: (1) Define, (2) Design, dan (3) Develop. Tahap penyebaran terbatas pada lokasi penelitian, hal ini dilakukan karena keterbatasan waktu peneliti. Pengumpulan data dilakukan melalui lembar validasi bahan ajar dan teknik analisis data dilakukan dengan cara kualitatif dengan metode deskriptif. Melalui proses pengembangan penelitian diperoleh alat pembelajaran matematika dalam bentuk modul media berdasarkan kearifan lokal yang valid yaitu 74,67.Abstract. The existing teaching materials or learning media have not adequately integrated, explored the values of local wisdom, although they have met some of the eligibility criteria of the textbook, that is, the content of the content, presentation, language, and the feasibility of the graphics. However, the material still has not raised the richness of local culture. The purpose of this research is (1) to develop teaching materials of learning media based on local wisdom, and (2) to know the quality and feasibility of teaching materials based on material expert, media expert, peer reviewer, in this case is lecturer of media / multimedia learning mathematics. The research method used is experimental method with development model, development model used to develop learning device, in this research is to modify from model known as Four-D Model. Modifications made are simplification of the model from four stages into three stages, namely: (1) Define, (2) Design, and (3) Develope. The deployment stage is limited to the research site, this is done because of the limited time of the researcher. Through the process of development research obtained by learning tools of mathematics in the form of a media module based on valid local wisdom of 74.67.

E-learning becomes one of the concepts deriving learning management system (LMS) which is designed to identify the gaps in teaching learning process, analyzing and reporting the data received automatically. One of the upgrading platforms of this learning management system recently is Schoology. It serves collaborative blended learning units which is form used in revolution 4.0 era. In investigating the reason of why Schoology is important and try to dig more information of its look, interview and documentation are applied in this research to be described clearly. Two teachers from one of the private universities in Cirebon are willing to participate in this research. By its interactive features that Schoology has, it changes teacher’s perspective to be a must using Schoology since it allows teachers to collaborate not only with their students, but also with other teachers, coaches, and parents. Four aspects of features involve content delivery, test and quizzes, discussion, and video viewing/link sources which allowed teachers sharing material discussed with students, searching new article with other teachers, and grading students test result, quizzes and attendance offered by Schoology as the reason of both teachers that Schoology should be one of learning management system conducted.

No abstract

Penelitian ini bertujuan untuk mengetahui jenis dan penyebab kesalahan siswa dalam menyelesaikan soal pada materi SPLDV yang ditinjau dari indikator kemampuan matematis. Populasi dalam penelitian ini adalah siswa kelas XI SMA Negeri 1 Kadugede Tahun Pelajaran 2017/2018. Pemilihan sampel dengan cara quota sampling, diperoleh siswa kelas XI sebanyak 36 orang. Pengambilan data diperoleh dengan menggunakan metode tes untuk menentukan kemampuan pemecahan masalah matematis siswa yang kemudian dianalisis dengan uji perbedaan rata-rata. Hasil penelitian menunjukan bahwa: 1) Kesalahan dalam memahami masalah sebesar 43,1%; 2) Kesalahan dalam merencanakan penyelesaian dan menyelesaikan masalah sesuai rencana sebesar 53,3%; 3) Kesalahan dalam menyelesaikan masalah sesuai rencana sebesar 39,8%; 4) Kesalahan dalam membuat model matematika, menyelesaikan dan melakukan pengecekan jawaban sebesar 61,1%.