Realistic Mathematic Education approach (RME) by telegram to improve mathematics' learning outcame] The aim of this study was to determine the increase in student mathematics learning outcame after being given realistic mathematics education by telegram. The type of research was classroom action research involving subjects as many as 30 students of Technical Information (TI) class. This research was conducted in two cycles, each of which consists of planning, action, observation, evaluation, and reflection. The technique used for data analysis is descriptive statistical analysis. The result showed that the realistic mathematics education approach by telegram able to improve students mathematics learning outcames. In the pre-cycle stage the average mathematics learning outcames are 63.56 experienced an increase in the first cycle of 11.59% becomes 70.93. Increased back of 7.71% with average 76.40 in the second cycle. For completeness learning mathematics in the pre-cycle 46.66%, increased of first cycle 56.66% and second cycle increased back 70%. Student response showed ≥ 65 %. So that learning with Realistic Mathematics Education (RME) by telegram can be categorized as helping student to improve their mathematics learning outcames.
Implementation of Problem Based Learning Model with Google Classroom to Improve Mathematics' Learning Outcome] The aim of this study was to determine the improvement of students' mathematics learning outcomes with the implementation of Problem Based Learning Education Model with Google Classroom support. The type of research was classroom action research involving subjects as many as 30 students of IT class in STIMIK STIKOM Indonesia. This research was conducted in two cycles, each of which consists of planning, action, observation, evaluation, and reflection. The analysis technique used was descriptive statistical analysis. The results showed that the implementation of Problem Based Learning Education Model supported by Google Classroom succeeded in improving learning outcomes. This is evident from the average score of students' mathematics learning outcomes for cognitive and affective domains. In the cognitive domains, average score was 60.70 for the early reflection and increase by 11.25% to 66.83 in the first cycle, increase by 9.27% to 73.03 in the second cycle. The average score of students' mathematics learning outcomes for the affective domain was 2.83 (quite good category). At the stage of early reflections increased by 18.4% to 3.27 (good categories) in the first cycle, and increased by 12.23% to 3.67 (good categories) in the second cycle.
Sistem pengenalan wajah manusia merupakan salah satu bidang yang cukup berkembang dewasa ini, dimana aplikasi dapat diterapkan dalam bidang keamanan (security system) seperti ijin akses masuk ruangan, pengawasan lokasi (surveillance), maupun pencarian identitas individu pada database kepolisian. Penelitian ini bermaksud untuk merancang bangun sistem surveillance berbasis pengenalan wajah dengan menggunakan metode pengenalan wajah yang berfokus pada jarak dan akurasi dari pendeteksian wajah melalui kamera yang dapat dikenali melalui metode haarcascade classifier. Hasil dari penelitian dengan menggunakan metode tersebut memperoleh rata rata deteksi wajah dengan jarak maksimal adalah 3 meter dari kamera. Sedangkan hasil untuk akurasi pengenalan wajah dengan metode eigenface dan haarcascade classifier masing masing memperoleh akurasi 1 meter sebesar 87%, 2 meter sebesar 83%, dan 3 meter sebesar 63%.
Denpasar during the Covid 19 Pandemic].The purpose of this study was to determine the effectiveness of online learning using online media during the covid-19 pandemic in mathematics and find the student's problems that occur. This study is a descriptive quantitative study with the population being all students Vocational High School of IT Bali Global Denpasar who were tought mathematics using the online method. The research sample was 66 students of class X RPL who were selected using simple random sampling technique. Collecting data using a questionnaire with a Google form application, and data analysis using descriptive statistics. In this research, evaluating the effectiveness in this study using indicators of student satisfaction and understanding in the implementation of online learning. From the satisfaction indicator, it was found that 37,9% felt quite satisfied, 27.7% answered satisfied, and 7.6% answered very satisfied, and only 25.8% answered less satisfied and 6.1% answered very dissatisfied. From the indicators of student understanding, 43.9% agreed with the statement that online learning was easy to understand, and 13.6% answered strongly agree. On the other hand, 33.3% disagreed and 9.1% strongly disagreed. For student's problems that occur, it was found that 68.2% answered quota constraints for the internet and 22.7% answered signal problems or poor internet connections. So from this study it can be concluded that online learning with the online media system at Vocational High School of IT Bali Global Denpasar is running quite effectively. However, improvements in the quality of learning must be carried out and the points that become student's problems must be found solutions, so that the effectiveness of learning will be better in the future.
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