Covid-19 changes human habits, especially the learning process. Teaching and learning activities that are usually carried out offline now must be online. The research was motivated by the students' assumptions about mathematics which were considered difficult. Students feel overwhelmed when studying mathematics. When faced with math problems, students often don't have the confidence to solve it. The purpose of this study is to determine the increase in self-confidence of students who get online learning using the CPA approach during the Covid-19 pandemic, both in terms of overall, and Initial Mathematical Ability (IMA). This research is a quasi-experimental research with a non-equivalent control group design on Mathematics subjects on the topic of data collection and presentation in fifth-grade elementary schools. The sample consisted of 56 students at one of the elementary schools in Central Jakarta, Indonesia The research instrument used a self-confidence attitude scale given at the beginning before and after the treatment ended. The learning process is carried out online through the Whatsapp Group, Youtube, and Google Form. The research findings showed that online learning using the CPA approach can increase students' self-confidence better than conventional learning, both as a whole, and IMA. Thus, the CPA approach can be used as an alternative to increasing student self-confidence during the Covid-19 pandemic

Reading habits in Indonesian society have not developed well. In addition, the learning is carried out at this time has not been able to develop reading skills effectively and efficiently. This study aimed to analyze the mindset relationship to reading literacy ability in fifth grade elementary school students. This type of research is a correlation. The design of this research is quantitative with correlational research methods. The population in this study were all fifth-grade elementary school students, totaling 79 students. The research sample amounted to 55 students. Data collection methods used are non-test and test methods. The instrument used in collecting data are a questionnaire and reading literacy test. Data analysis techniques used are descriptive quantitative, and statistical inferential. The study results are the results of the testing hypothesis I, obtained rcount 0.757 > rtable 0.266 then H0 is rejected, which means it is significant. Hypothesis II test results, rcount 0.434 > rtable 0.266 then H0 is rejected, which means it is significant. So that the Growth mindset has a relationship with the reading literacy ability of fifth-grade elementary school students. A fixed mindset also positively impacts students' reading literacy skills. It was concluded that there was a significant correlation between mindset and reading literacy ability.

ABSTRACT The purpose of this research is (1) To find out how the needs of teachers and students in learning math using E-learning based on Problem Based Learning in SMP Negeri 2 Denpasar, (2) to find out the factors of obstacle in needs planning efforts of mathematics learning using E-learning based on Problem Based Learning and (3) to find out supporting factors in needs planning efforts of mathematics learning using E-learning based on Problem Based Learning. This research is qualitative research. The subjects in the study mathematics teachers and students in grades IX 1 and IX.2. The instrument used is a questionnaire. The results of this study are (1) 100% of teachers fall into the category of very need and, 39.69% of students are in the category of very need, and 60.31% of students are in the category of need, (2) The obstacle factor experienced by teachers is a less stable network and licensing needs from the leadership. As for learners there are no obstacle factors experienced and (3) There are several supporting factors from teachers and students, namely the availability of devices such as mobile phones, laptops and computers and very adequate internet access. Keyword : Mathematic education; e-learning; Problem based learning ABSTRAK Tujuan penelitian ini adalah (1) Untuk mengetahui bagaimana kebutuhan guru dan peserta didik dalam pembelajaran matematika menggunakan E-learning berbasis Problem Based Learning di SMP Negeri 2 Denpasar, (2) untuk mengetahui faktor kendala dalam upaya perencanaan pemenuhan kebutuhan pembelajaran matematika menggunakan E-learning berbasis Problem Based Learning dan (3) untuk mengetahui faktor pendukung dalam upaya perencanaan kebutuhan pembelajaran matematika menggunakan E-learning berbasis Problem Based Learning. Penelitian ini merupakan penelitian kualitatif. Subjek dalam penelitian ini adalah guru matematika kelas IX dan peserta didik kelas IX 1 dan IX.2. Instrumen yang digunakan berupa kuesioner. Hasil dari penelitian ini adalah (1) 100% guru masuk kategori sangat butuh, 39,69% peserta didik masuk kategori sangat butuh, dan 60,31% peserta didik masuk kategori butuh, (2) Faktor kendala yang dialami guru yaitu jaringan kurang stabil dan diperlukan perizinan dari pimpinan. Sedangkan untuk peserta didik tidak terdapat faktor kendala yang dialami dan (3) Ada beberapa faktor pendukung dari guru dan peserta didik yaitu tersedianya perangkat seperti Handphone, laptop dan komputer serta akses internet yang sangat memadai. Kata Kunci : Pembelajaran Matematika; E-learning; Problem Based Learning

Penelitian ini bertujuan untuk mengetahui tanggungjawab OJK dalam melakukan pengawasan terhadap pinjaman online dan mengetahui pola pola penyelesaian sengketa jika terjadi wanprestasi dalam perjanjian pinjaman online melalui Aplikasi Maucash. Jenis penelitian ini adalah penelitian hukum Normatif-Empiris dengan menggunakan pendekatan perundang-undangan, pendekatan konseptual, dan pendekatan sosiologis. Teknik pengumpulan data menggunakan data kepustakaan dan data lapangan dari hasil wawancara yang dianalisis secara deskriptif-kualitatif. Dari hasil penelitian ini menunjukkan pengawasan yang dilakukan OJK terhadap MauCash berdasarkan POJK Nomor 77/POJK.01/2016 dibagi menjadi dua tahap, yaitu pra-operasional usaha dan saat operasional usaha. Dan mengenai penyelesaian sengketa wanprestasi MauCash membentuk Tim Field Collection untuk penagihan dan dalam kurun waktu 180 hari secara otomatis data akan masuk dalam SLIK OJK.

Kecanduan terhadap smartphone dapat berakibat buruk bagi pelajar. Penelitian ini bertujuan memprediksi kecanduan smartphone di kalangan siswa-siswi SMA dengan menggunakan metode terbaik dari klasifikasi. Klasifikasi dilakukan untuk dapat mendukung pengambilan keputusan terkait masalah kecanduan smartphone. Algoritma C4.5, Naive Bayes (NB), dan K-Nearest Neighbor (KNN) merupakan metode klasifikasi machine learning yang digunakan pada penelitian ini. Metode ini merupakan metode klasifikasi machine learning yang termasuk dalam kategori top 10 dalam menyelesaikan kasus prediksi. Untuk dapat meningkatkan kinerja metode-metode machine learning tersebut, maka dilakukan seleksi atribut sebelum proses klasifikasi menggunakan Forward Selection, Backward Elimination, dan dengan pendekatan korelasi Linear Regression. Hasil penelitian menunjukkan bahwa metode terbaik untuk klasifikasi kecanduan smartphone adalah KNN dengan seleksi atribut menggunakan Linear Regression berdasarkan korelasi weight, yang mana atribut inputan yang berpengaruh secara signifikan terhadap output kecanduan smartphone (Y) adalah umur (X1), durasi penggunaan smartphone (X5), aktifitas (X6), dan kualitas tidur (X7) dengan  model K = 44 dan numerical measure = Chebychev, menghasilkan accuracy = 79.03%, precision = 78.79%, recall = 81.25%, AUC = 0.828, dan running times = 1 detik. Output dari penelitian ini menunjukan prediksi dengan menggunakan metode terbaik yaitu presentase tingkat kecanduan siswa dengan tidak kecanduan serta presentase kecanduan smartphone dengan variabel lainnya.