The Objectives of this paper as an experimental research was to investigate the effect of Roundtable and Clustering teaching techniques and students’ personal traits on students’ achievement in descriptive writing. The students in grade ix of SMP Negeri 2 Pancurbatu 2016/2017 school academic year were chose as the population of this research.. The research design was experimental research by using factorial design 2x2. The students were divided into two experimental groups. The experimental group was treated by using Roundtable teaching technique and control group was treated by using Clustering teaching technique. The students are classified into the introvert and extrovert personal traits by conducting the questionnaire and the students’ achievement in descriptive writing was measured by using writing test, namely ‘Analytic Scoring’ by Weigle. The data were analyzed by applying two-way analysis of variance (ANOVA) at the level of significance α = 0.05. The result reveals that (1) students’ achievement in descriptive writing taught by using  Roundtable teaching technique was higher than that taught by Clustering teaching technique, with Fobs = 4.59>Ftab=3.97, (2) students’ achievement in descriptive writing with introvert  personal trait was higher than that with extrovert personal traits with Fobs=4.90 Ftable=3.97, (3) there is interaction between teaching techniques and personal traits on students’ achievement in descriptive writing with Fobs =6,58 Ftable=3.97. After computing the Tuckey-Test, the result showed that introvert students got higher achievement if they were taught by using Roundtable teaching technique while extrovert students got higher achievement if they were taught by using Clustering teaching technique.

The Objectives of this paper were to describe the types of language styles used by male and female teachers in teaching English in the classroom and the reasons of the using those language styles by the teachers. The subjects were the teachers of SMP Negeri Pancurbatu, they were four English teachers, consits of two male teachers and two female teachers. It was qualitative explanative research designs. The researcher observed the teachers while teaching in order to get the teachers language styles taking place during their teaching in the classroom related to the theory of Kirszner and Mandell, who divides language style into four levels, and they are slang, colloquial, informal and formal style.The results of the data analysis showed that the dominant language styles used by male and female teachers utterances in teaching English in the classroom is formal style which means using language in the formal situation which it is designed to inform and where there is the least amount of shared background knowledge. Based on the interviewed of the teachers after the teaching learning process, there were some reasons to use the language styles during the teaching learning process, such as to make the information clearer, to make the student understand easier, to remind the students about the topic of the lesson, and to encourage the students to reach the lesson competencies well.

The Objectives of this paper are to describe the realization of language styles used by male and female teacher and the reasons of the using those language styles. The subjects were the teachers of SMP Negeri Pancur batu, they were four English teachers, consits of two male teachers and two female teachers. It was qualitative explanative research designs. The researcher observed the teachers while teaching in order to get the teachers language styles taking place during their teaching in the classroom related to the theory of Tannen, who divides the way of communication into six categories; pairs a contrasting use of language by males and females, they are: status versus support, independence versus intimacy, advice versus understanding, information versus feeling, orders versus proposal and conflict versus compromise. .The results of the data analysis showed that the. The language styles of the male and female teacher were different in the way of communication. The realization of language styles by the teachers’ way of speaking  mostly occur in male teachers’ is orders which is 13 utterances (38.2%), then followed by advice which is 11 utterances (32.4%), then continued by information 6 utterences (20,6%) and then conflict 2 utterances (5,9%) and the last is status 1 utterances (2.9%). Female teachers’ way in communication was mostly realized by orders  which is 10 utterances (29.4%), then followed by feeling which is 8 utterances (23.5%), and then continued by understanding which is 7 utternces (20.6%), and then support which is 5 utterances (14.7%), and the last is proposal which is 4 utterances (11.8%). Besides, it can be seen that eventhough Tannen (1992) suggested the orders were categorized for male way’s of speaking , but based on this study, orders were found in the female teachers’ way of speaking. There were 29.4% the utterances realized by orders although that criteria is not classified to female. In fact, those way of speaking were the most used in the female teachers. According to the male and female teachers all the ways of communication are expressed to encourage the students to reach the lesson competencies well.Keywords:English Teachers, Language Styles, Way of communication,