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Journal : Scientific Timeline

Analisis Pemahaman Konsep dan Kesulitan dalam Memahami Mata Kuliah Kalkulus 1 Mahasiswa Program Studi Matematika Nur'aini Muhassanah
Scientific Timeline Vol. 1 No. 1 (2021)
Publisher : UNU Purwokerto

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Abstract

The purpose of this study is to find out: (1) understanding of the concept of calculus 1 for students of the mathematics study program, (2) what are the things that cause students difficulties in understanding the concept of calculus. In this research, the method used is qualitative with descriptive methods. Where the technique used to determine the source of data is the purposive sampling technique. The data taken in this study consisted of two, namely the results of the conceptual understanding test and the interview results. Triangulation methods will then validate the test results. The conclusions of this study's results are: first, the understanding of the concept of calculus 1 in mathematics study program students consists of 13.64% in the high category, 40.91% in the medium category, and 45.45% in the low category. Second, three things cause students difficulties in understanding the concept of calculus 1; they are the methods or learning models used by lecturers, student's lack of questions' exercise by the students, student's lack of repeating the materials given by the lecturer. Besides all of that, basic mathematical concepts during high school are also insufficient to go through the next level of calculus learning.
Perencanaan dan Pengendalian Proyek dengan Metode CPM (Critical Path Method) di PT Ghani Sejahtera Abadi Nur'aini Muhassanah; Ikhsani Annisa Khozinati
Scientific Timeline Vol. 1 No. 2 (2021)
Publisher : UNU Purwokerto

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Abstract

The purpose of this study is to apply the CPM (Critical Path Method) method to predict and optimize the project's total duration on the scheduling of house construction projects by PT Ghani Sejahtera Abadi. In this research, the method used is quantitative with a descriptive approach. The subjects of this research are project owners and workers who build houses in Kedungrandu Regency Housing. Sources of data needed to meet the criteria for data that CPM can analyze include: (a) data on the name of the activities in the project, (b) the sequence of activities on the project, and (c) data at the time used in the house construction project. For data collection in this study using several techniques, namely interviews and literature study. Based on the results and discussion of this research, the following conclusions are obtained: (1) Critical Path Method (CPM) can be used to schedule optimal, fast, and efficient house construction projects. (2) The CPM application causes the completion time of the type 33 house construction project in the Kedungrandu Regency Housing, which was initially scheduled for 64 days to be faster, namely 42 days.