The purpose of this research is to determine soil classification and identify the swelling potential of soil clay in the Jababeka I (sample 1) and the Lippo Cikarang (sample 2), Indonesia. The research was carried out by the experimental method. Soil classification based on the Unified Soil Classification Systems (USCS) determined by No.200 sieve analysis and A-chart (LL vs PI chart), while based on the American Association of State Highway and Transportation Officials Soil Classification System (AASTHO), classification determined by No.200 sieve analysis, liquid limit (LL) and plasticity index (PI). The results show the soils are clay of high plasticity (CH) in determining of the USCS, whereas in AASTHO, the soils are A7-6, which means clay of high plasticity. Furthermore, the swelling potential or expansion potential of clay is determined by indirect methods namely by the results of LL, PI, SL, and percentage of the passing of sieve No.200. Moreover, consolidation test is also carried out to obtain compression coefficient (Cv) and coefficient of consolidation (Cc) to determine the mineral content. The results of this experimental research that soils contain kaolinite minerals, a very high swelling potential with the possible change in volume of 10-30 %.

The purpose of this research is to develop an e-module for the Statistics subject in the Building Engineering Education study program, Jakarta State University. E-module development using Adobe InDesign software. This research is included in development research (R&D) using the ADDIE model (Analysis, Design, Development, Implementation, dan Evaluation). Two experts, who are material experts and media experts, validate the product. The product is an e-module which consists of 6 modules. Based on the validation, the average score of the material expert's assessment of modules 1 - 6 was 84% in the very feasible category. The average score of the media expert's assessment of modules 1 - 6 is 88.67% in the very feasible category. Based on the results of the validation, the Statistics E-Module is very feasible to use.

AbstrakPenelitian ini bertujuan: (1)

The Objective of this study to determine the relevance of vocational high schools (SMK) graduates especially in drawing technique building (TGB) with competence is needed in the world of work. This research was conducted in the state vocational high schools (SMKN) in Jakarta who organized a program of TGB, they are SMKN 26, SMKN 35, SMKN 52, and SMKN 56, Jakarta, and in several companies of construction industry. The sample in this research a number of 40 people, they were graduated in 2010 and 2011. The research taken using a purposive sample techniques. There are three instrument used. First, instrument competence graduates who votes by The Chairman of the TGB programs. This instrument is basic competence of curriculum (KTSP) SMK of TGB. Second, instrument competence required in the work hosted by graduates SMK of TGB by self assessment. Third, instrument competence required in the work hosted by manager to judge ability graduates SMK of TGB. Based on the research can be concluded that graduates SMK of TGB is competent in drawing, using software, and softskill. But in terms of counting, ability graduates SMK of TGB still low.

Penelitian ini bertujuan untuk menghasilkan bahan ajar berbasis e-modul pada matakuliah Fisika Dasar di Program Studi Pendidikan Teknik Bangunan Universitas Negeri Jakarta, untuk menunjang proses pembelajaran, baik di dalam kelas maupun secara mandiri. Penelitian dilakukan pada bulan April 2020 - Agustus 2020. Penelitian menggunakan metode Research and Development (R&D) dengan model pengembangan 4D. Model pengembangan 4D terdiri dari empat tahap: Define, Design, Development, dan Disseminate. Pengumpulan data melalui angket analisis kebutuhan, validasi bahan ajar oleh para ahli, dan menilai pengguna bahan ajar. Penelitian ini menghasilkan produk bahan ajar berupa e-modul yang terdiridari 7 (tujuh) materi. Penilaian oleh ahli media diperoleh data pada persentase validitas e-modul 90%, termasuk kategori sangat layak. Penilaian oleh ahli materi diperoleh persentase rata-rata data validitas e-modul sebesar 82% dan termasuk dalam kategori sangat layak. Hasil penilaian pengguna produk memperoleh nilai 4,24 dan kategori sangat baik, dan hasil pre-test dan post-test menunjukkan adanya peningkatan skor peserta sebesar 39% setelah menggunakan e-modul.