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The existence of a good and correct use of Indonesian has now faded. This is because most teenagers use slang in their daily activities, including in the learning process activities. This study aimed to describe the phenomenon of the influence and impact of the use of slang on the use of Indonesian among adolescents. This research used was literature review method with literature study. The literature search method used was the keywords “Slang”, “Alay Language”, “Impact”, “Indonesian”, “Teenagers”. The data base used for reference in this research is Google Scholar and Portal Garuda.The analysis used was a narrative presented in the form of a description. The use of slang among teenagers has become commonplace and the majority of teenagers use slang in doing their daily activities. The existence of this had an impact on the existence of the decline in the use of Indonesian, difficulty in communicating, affects the way of learning and the learning process. In the learning process, the use of good and correct Indonesian should be emphasized given the many factors that cause the lack of existence of Indonesian.

The research method used in this research is descriptive qualitative research and the form of research used is a case study with the subject being students of class X IIS 4 consisting of 30 students. The data collection tool used was a learning style questionnaire, a test of mathematical problem solving abilities in the form of 2 essays, and interviews with 6 students, namely 2 students with a visual learning style, 2 students with an auditory learning style, and 2 students with a kinesthetic learning style. Before being used in this study, the questions were tried out to determine validity, discriminatory power, index of difficulty, and test reliability. From the results of the study it can be concluded that the students' mathematical problem-solving abilities in terms of learning styles in SPLTV material as a whole have a percentage of 65% with moderate criteria. The sub-problems in this study are as follows: (1) The mathematical problem solving ability of students with a visual learning style has a percentage of 64.82% with moderate criteria; (2) Mathematical problem solving ability of students with auditory learning style ability has a percentage of 72.92% with moderate criteria; (3) The ability of students' mathematical problem solving with learning styles has a percentage of 61.72% with low criteria.    

This study aims to determine the relationship between pedagogic practice of biology online learning and student learning outcomes in class XI SMAN 9 Malang.  This research was conducted from 02, October 2021 to 07, October, 2021 at SMAN 9 Malang.  This research includes ex post facto research with quantitative research using survey mode with correlation analysis techniques in surveys, information is collected from respondents using questionnaires or questionnaires.  Data analysis techniques in this study are collecting data, reducing data, presenting data, verifying and drawing conclusions.  The results of this study are Biology online learning pedagogic practices have a significant relationship with student learning outcomes during the Covid-19 pandemic, but are at a very low level.  This is indicated by a significance value of 0.434 where 0.575 > 0.05.  In addition, based on the results of a simple correlation analysis obtained a correlation value of 0.103, which means the direction of the relationship is positive.  Based on the results of research and discussion, there is a significant relationship between online learning pedagogic practices and student learning outcomes during the Covid-19 pandemic which is at a very low level.  Because in the online learning process there are shortcomings, namely the lack of maximum student involvement, lack of learning time, teachers have difficulty determining whether students do assignments independently or not, so teachers must work as much as possible to adapt to the online learning process but these obstacles can be overcome properly due to assistance  and motivation of various parties.

This study aims to determine students' learning difficulties in chemistry by using zoom in achieving cognitive, sociological and psychological aspects and to further examine the difficulties faced by students. Data collection using questionnaires and tests, then using the K-Means Cluster data analysis technique, with three clusters (groups) followed by crosstab and graph analysis, using SPSS IBM 22 and followed by the RASH model. the results obtained are that (a) cognitive aspects in the form of student thinking, followed by sociological aspects and psychological aspects related to students' internal factors (b) cognitive results are tested more deeply with the Expended Score Graph. The ICC is in accordance with the RASH Model, the difficult questions to work on are questions 10 and 13 are in the analysis (C4), the Outfit MNSQ value is between 0.5-0.15 and then from the Probability graph of Student Cognitive Ability is well distributed, thus the difficulty in the cognitive aspect lies in the questions presented. These results are very useful for identifying students' cognitive limitations in chemistry learning. Thus, from the results, it is explained that cognitive is the main difficulty, with the RASCH test it is known that the level of difficulty is at the analysis.

This research is motivated by the problem of lack of motivation and attention of students in following the teaching and learning process in the classroom because teaching and learning activities still use conventional methods. This makes students have difficulty in understanding the material being studied so that basic competencies and KKM are not achieved. This study uses the Research and Development (RnD) product development method, using 6 out of 10 research stages, namely potential and problems, data collection, product design, design validation, design improvement and product testing. In this study, researchers used multimedia with the Mind Map method as an interesting learning medium by using a computer that can display text, images, video, and audio so that the learning process is more enjoyable for students. The results of this study are multimedia-based learning media using the Mind Map method. The validity value of media experts is 3.6 which is declared feasible, while the validity value of material experts is 3.8 which is declared feasible, and increases students' understanding and interest as users from 61% initially to increase to 86.11%.

The role of parent at st. Benedictus gulf of Siak Estate is less serious than entertaining the Catholic faith in paiding. preparing children for the first communion. Often children who should be able to receive communion are, in fact, unable to accept it because parents are busy with their work or the child himself is not asking the parents to take the first communion preparation. Research aims to review the practical roles of parents with children, to know inhibitors and supportive factors and to know the steps to improving parenting. Research of qualitative methods with this descriptive approach scores the data trianulation. With the respondent's parents of the first communion candidate. Data collection techniques using interviews, and documentation, and observations. Research indicates that parents perform a child's side by taking part in the first communion study, inviting children to the celebration of the Eucharist and teaching reverence before and after receiving holy communion, and actively inviting children to join spiritual activities in the church, both in the ward and at home. The barriers that parents experience are sometimes forgetting to remind children follow communion study and the difficulty of teaching children to manage time between play and learning. Supporting factors of parents have teachers and catechism and the first communion handbook and facilitate transportation. Parish priest and caretaker of gere

The role of parent at st. Benedictus gulf of Siak Estate is less serious than entertaining the Catholic faith in paiding. preparing children for the first communion. Often children who should be able to receive communion are, in fact, unable to accept it because parents are busy with their work or the child himself is not asking the parents to take the first communion preparation. Research aims to review the practical roles of parents with children, to know inhibitors and supportive factors and to know the steps to improving parenting. Research of qualitative methods with this descriptive approach scores the data trianulation. With the respondent's parents of the first communion candidate. Data collection techniques using interviews, and documentation, and observations. Research indicates that parents perform a child's side by taking part in the first communion study, inviting children to the celebration of the Eucharist and teaching reverence before and after receiving holy communion, and actively inviting children to join spiritual activities in the church, both in the ward and at home. The barriers that parents experience are sometimes forgetting to remind children follow communion study and the difficulty of teaching children to manage time between play and learning. Supporting factors of parents have teachers and catechism and the first communion handbook and facilitate transportation. Parish priest and caretaker of gere