The 2013 curriculum suggests that learning must be integrated or commonly known as integrated thematic learning. Thematic learning in elementary schools usually combines material on several subjects into one theme. The references used by both teachers and students are provided by the government, namely teachers’ book and students’ book. The teachers directly teach their students using references provided without analyzing or further developing by the teacher. The implementation of 2013 curriculum requires teachers to be creative in using various learning models and scientific approaches. With these demands the teacher should be able to develop teaching materials in accordance with the learning model. This research is motivated by the importance of developing integrated thematic teaching materials based on Problem Based Learning models that are able to improve the critical thinking skills of fifth grade students. The study was conducted for 3 months. This type of research is development research refers to the 4-D model proposed by Thiagarajan, but this research is limited to defining, designing and developing. The instrument used to assess the quality of teaching materials is a questionnaire with five categories, while students' critical thinking skills use test instrument. Data analysis was performed by descriptive analysis. The results of the analysis show that integrated thematic teaching materials based on Problem Based Learning (PBL) on heat and its transfer are stated to meet valid criteria and practicality, because teaching materials are developed based on supporting theories consistently and can be used easily. Whereas in the effectiveness test of integrated thematic teaching materials based on problem based learning, it was declared effective to be used because the developed teaching materials had a positive impact in increasing students' critical thinking skills.

The aim of this research is to know the extent to which the use of English song improves students’ vocabulary at Madrasah Aliyah Negeri 1 Halmahera Utara. This research was quantitative research by using pre-experimental design with one group pretest-posttest. The sample of this research was 20 students in class  X-3 Social science students by using convenience sampling technique. The instrument used in the research was the song lyrics. The students’ answer the question by determining noun, verb and adjective of  vocabulary consisting of 50 items. The data were analyzed by using t-test. It was found that teaching vocabulary by using English Song helped the students to master vocabulary. Based on the data analysis, teaching by using English Song could significantly improve students’ vocabulary.The research  shows the score of pre-test and posttest as follow:  pretest 58.9 score and posttest 75.1 score, and T-count value obtain 12.7 and t critic 1.729 at the significant level 0.05. It means t-count is higher that t-critic. The null hypothesis (H0) stating that teaching vocabulary through English song cannot improve students vocabulary is rejected and the alternative hypothesis (Hi) stated that teaching vocabulary through English song can improve students’ vocabulary mastery at Madrasah Aliyah Negeri 1 Halmahera Utara is accepted.

This study aims to identify and to classify shifts in English-Indonesian translation. This research employed a descriptive qualitative method. The research was conducted at the fourth-semester students of English Language Education Study Program, Khairun University which consists of two classes, 78 students. The data were collected through tests and interviews. The researcher classifies the data into five categories of shifts based on Catford's classification. That involves level shift, and category shifts which consist of structure shifts, unit shifts, intra-system shifts, and class shifts.The English-Indonesian translation which is analyzed through descriptive analysis technique showed the results, with the percentage of Structure Shifts (SS) 73.06%, Unit Shift (US) 7.69%, Class Shifts (CS) 8.97%, Intra System Shifts (ISS) 5.76%, and Level Shifts (LS) 4.48%.

Language is a sound system that used people in a communication to share idea and feeling in a society. There are three terms that have to know by a language learner. They are langage, Langue, dan parole. In linguistics study, the object of linguistics is parole. In the process of communication, usually make a linguistic change and linguistic shift. Although, linguistic change and linguistic shift are made by a language user, but also he or she maintain his or her language. A couse of linguistic change and linguistic shift is social mobility. Social mobility is a process of moving from a social class to another social class. Social class can be devided become two kinds. They are vertical social class and horizontal social class.     Key words: Language change, social mobility

This study aims to (1) get the types of grammatical (auxiliary) errors in non-fiction text writing among the second semester students of the English Education Department of Khairun University in the academic year of 2013/2014, and (2) get the sources of grammatical (auxiliary) errors in writing at the second semester students of the English Education Department of Khairun University in the academic year 2013/2014.                The design of this research was qualitative research using the descriptive qualitative approach. The participants consisted of 12 students The main data were obtained from the 12 students’ compositions and the other data were collected from interviews.   The results of the research show that (1) the students make errors in omission, addition, and misformation of be (be, am, is, are, was, were, beeb), do (do, does), have (have, has, had)  and modals (can, must, will). (2) The source of error is intralingual errors and interlingual error. (3) The students also make error in using verbs after modal auxiliary. It means that the students still lack in mastering auxiliary verbs. Key word: Error Analysis, auxiliary verbs