The spread of Covid-19 had a significant impact in all sectors. Enforcement policies from the government that are appropriate with the conditions for the spread of the virus that are needed to prevent a bigger impact. Clusteritation by province based on data on the spread of Covid-19 is important for the government to set appropriate policies in order to prevent the spread of Covid-19. The data used include data on population density, testing rate, proportion of population 50 years and over, and proportion of population diligently hand-washing in each province. The data factors for the spread of Covid-19 tend to overlap and there are outliers in the data which causes the data not normally distributed. In this study, Model-Based Clustering t-multivariate was used for data clustering. The results show that using Integrated Completed Likelihood, two groups of optimal cluster were obtained. The second cluster has a higher risk of spreading Covid-19 than the first cluster. Keywords : Covid-19, Clustering, Model-Based Clustering t-Multivariat

This study aims to determine the increase in learning outcomes after implementing the Reading Guide learning method. This research method uses Classroom Action Research with two-cycle steps. The subjects of this study were students of class V-B MI Hasyim Asy'ari Pepe Sedati Sidoarjo. The data taken is the result of observing the implementation of learning and learning outcomes tests. Data analysis is as follows: 1) Pre-cycle: student learning outcomes are less satisfactory and student learning interest is less 2) Cycle I: learning process increases, student learning enthusiasm begins to focus, student interest in learning increases and student learning outcomes have increased. 3) Cycle II: the learning process increases, students' enthusiasm for learning begins to be directed, student interest in learning increases, and student learning outcomes achieve the expected results.

This research discusses the language development of children aged 3 years. The purpose of this study was to determine the language development of children aged 3 years. This type of research is descriptive qualitative, the informants of this research are the closest family of children, namely parents and relatives. The data collection tools in this study were in the form of observation, interviews and documentation. While the data that has been collected is then analyzed with qualitative descriptive data analysis techniques, namely data reduction, data presentation and conclusion drawing (verification). The results of the research are the language development of children aged 3 years including: First, phonetics, namely the sound of language. Second, Morphology, namely changes in word form, and changes in word form to the meaning and group of words. The three syntaxes are sorting words in determining meaning which are composed of Subject, Predicate, Object and Description. Fourth, Semantics is Knowing the meanings or meanings contained in each word in other words. And Fifth Pragmatics, namely Using polite language in appropriate situations. And the results of the achievements of the five aspects of language development of children aged 3 years that almost all indicators are achieved very well. Only pragmatic development indicators are still sufficient or are starting to develop. As for the overall results of the development of language knowledge of children aged 3 years can be said to be very good or has been achieved.