Mandi marpangir is a tradition to clean body and soul at one day before holy Ramadhan and Eid Mubarak. The purpose is to have blessing during Ramadhan month until the day of  Eid Mubarak. The purpose of this research was to describe the tradition, cultural values, and local wisdom of Mandi marpangir. This research focused on revitalizing Mandi marpangir according to customs and traditions in Matondang Village. The location of the research was in Matondang Village, Padang Lawas regency. The informants are residents who live in the Matondang Village. The population objects withdrawal is carried out when the researcher selects the entire population in the research location, namely fountains and rivers, which are the places where people do bathing activities. This research used qualitative descriptive method. The data were observation and depth interview. The results of the research showed that the Mandi marpangir is a tradition with a special sacred value in which the community and its surroundings flock to the shower and river by bringing Pangir to perform the bathing ritual together. The Mandi marpangir tradition begins with pounding together the Pangir that has been boiled or brought by the community, which aims to purify ourselves in welcoming the months of Ramadhan and Eid Mubarak.

This paper described the mechanism of valence change in Mandailing language. The concept of valence refers to the number of arguments a verb that serves as a predicate in a clause can present. Changing the valence of verbs in Mandailing through a causative process causes the verbs to experience an increase in valence. This study was included a qualitative descriptive study, in which the method is a study of language typology and the data analyzed based on the problems discussed using the method Agih. The results of the data analysis of this study are presented using an informal method in the form of explanation or exposure using ordinary words or verbal language. The determinants used by this method are the language elements in the Mandailing language. The purpose of this study was to find what types of verbs in the Mandailing language can experience changes in valence, symptoms, and their process of change, and the semantic role of these verbs. The data analysis from this study was obtained through the observation method and the proficient method with informants; based on the results of the analysis, it can be concluded that changes in the valence of the Mandailing language occur mainly in intransitive, transitive, transitive verbs, which are grouped into symptoms that cause valence reduction and valence expansion. This study is also expected to inspire some researchers interested in the mechanism of valence change in Mandailing language, either micro or macro.

This research describes the context of learning or lectures at academic achievement colleges known as achievement indexes (IP) and cumulative grade index (GPA). This is confirmed in the process standard operation (SOP) of Lectures and Curriculum with the number Un-11.JSOPP-04-02.R0 published by the North Sumatra State Islamic University Medan that Academic achievement is the result achieved by student guidance in study activities at the University North Sumatra State Islamic Medan as proof of the success that has been achieved after conducting learning or lecture activities. The results achieved by these students can take the form of subject values, Grade Point Average (GPA), championship rank, graduation grade, and completing studies on time. In the perspective of the study of academic achievement theory known as learning outcomes. The discussion of learning outcomes cannot be separated from the study of the concept of learning itself, because learning outcomes are obtained after going through the learning process carried out by students. This research carried out using a mixed method approach, which is a combination of qualitative and quantitative research. Qualitative research used is naturalistic, because it is based on the consideration that what is sought in this research is data that will describe and paint complex social reality in such a way that it becomes a concrete social phenomenon. The research situation chosen in this study was the academic achievement of students from high school and aliyah madrasa in the English Education Study Program at the Faculty of Tarbiyah and Teacher Training at North Sumatra State Islamic University Medan, covering a broad context, involving many actors, time different places, different processes and processes

The pandemic of Covid-19 affects a variety of facets, including the way education is delivered, which has shifted to an online format via the use of virtual classrooms supplied by several platforms. The purpose of this study is to ascertain lecturers' attitudes about the incorporation of comedy in virtual classrooms. A 14-question closed-ended questionnaire was issued online via Google Form. The questions fall into three categories: humor integration into the learning process, comedy and its influence on students, and lecturer-supplied humor content. A Likert scale was used to create the questionnaire. SPSS was used to analyse and evaluate the data statistically. A more extensive response was gathered through an interview with the subject, who was randomly selected depending on their agreement. The findings indicate that lecturers believe humor is vital in the classroom and can be used as a teaching method. Additionally, they feel that incorporating humor into the teaching-learning process can increase student participation, enthusiasm, comfort, and motivation, as well as garner respect and a favorable attitude toward lecturers. Regarding the material or subject matter utilized to perform humor, the lecturers feel that delicate topics (pornography, religion, sexuality, and political choice), the students' cultural background, and the lesson taught at the time must all be considered. As a result, it can be recommended that comedy can be used as a substitute for relieving pressure and boredom during online learning sessions.