IMPROVING ENGLISH VOCABULARIES THROUGH DERIVATIONAL MORPHEME

This research aims to improve students' vocabulary acquisition through the strategy of deriving suffixes. The populations of this study are students from Politeknik Ganesha Medan in second semester. This research was conducted through Applied Classroom Action Research (CAR), born in two cycles (cycle 1 and cycle 2), and each process consisted of four meetings. The vocabulary test results showed that the average improvement score of the pre-test was 34.66, the post-test of period 1 was 93.46, and the post-test of period 2 was 97.33. In the first cycle, the nominal comparison rate was 88.83%, the verb nature was 77.46%, the adjective nature was 40.74%, and the adverbial heart was 84.14%. In cycle 2, the nominal comparison rate was 100%, the verb nature was 95.45%, the adjective nature was 65.84%, and the adverbial nature was 94.91%. The proportion of students who passed Minimal Criterion Mastery in each cycle was 100%, cycle 1 increased by 169.64%, and cycle 2 increased by 180.81%. These indicate that there is a significant improvement of the students’ vocabulary mastery through derivational morpheme strategy of the students of Politeknik Ganesha Medan.

Teaching Vocabulary Acquisition through Derivational Suffixes of SMP Santo Petrus Medan in the Academic Year 2017/2018

This study is aimed to improve the students’ vocabulary acquisition through derivational suffixes strategy. The subject of this study is the students of Class IX-1 of SMP Santo Petrus Medan in the academic year of 2017/2018. This study is conducted by applying Classroom Action Research (CAR), which have been conducted in two cycles (cycle 1 and cycle 2) and each cycle consisted of four meetings. The results of vocabulary test shows that the progressing mean score of the pretest is 34.66, post test in cycle 1 is 93.46, and post test in cycle 2 is 97.33. In cycle 1, the comparison percentage of nominal is 88.83%, verbal is 77.46%, adjectival is 40.74%, and adverbial is 84.14%. In cycle 2, the comparison percentage of nominal is 100%, verbal is 95.45%, adjectival is 65.84%, and adverbial is 94.91%. The percentage of the students who pass Minimal Criterion Mastery in each cycle is 100%, with the improvement 169.64% in cycle 1 to 180.81% in cycle 2. These indicate that there is a significant improvement of the students’ vocabulary mastery through affixation strategy of Class IX-1 of SMP Santo Petrus Medan in the academic year of 2017/2018.

On Locally and Globally Optimal Solutions in Scalar Variational Control Problems

In this paper, optimality conditions are studied for a new class of PDE and PDI-constrained scalar variational control problems governed by path-independent curvilinear integral functionals. More precisely, we formulate and prove a minimal criterion for a local optimal solution of the considered PDE and PDI-constrained variational control problem to be its global optimal solution. The effectiveness of the main result is validated by a two-dimensional non-convex scalar variational control problem.

Peningkatan Hasil Belajar dan Aktivitas Belajar Pelajaran Sosiologi Dengan Model Course Review Horay (CRH) di Kelas XI IPS 1 SMAN 1 Gebog Kudus

<table border="1" cellspacing="0" cellpadding="0"><tbody><tr><td valign="top" width="508"><p class="Abstrakabstract">The aim of this study is to address the problem of learning in the classroom by using Course Review Horay (CRH) model. The problems of learning in the class XI IPS 1, as a scope of this study, is very low level of learning activities in sociology which also resulted in low level of the learning outcomes. The measure of the success of learning outcomes is KKM (Kriteria Ketuntasan Minimal/ Criterion for Minimum Completeness). The KKM of class XI IPS 1 SMAN 1 Gebog Kudus is 65. The design of this study is CAR (Classroom Action Research) or PTK (Penelitian Tindakan Kelas). This study was done in a cyclical way, using CRH learning model. The results of the research in cycle 1 show that the average of student’s activities in learning is 81.49% and is categorized as good. Student learning outcomes classically who reached the KKM amounted to 84.62% of the total students in the class, while the others 15.38% have not reached the KKM. The classical mastery learning in cycle 1 has not been reached. The suggestions from supervisors and collaborators at the end of cycle 1 as a reflection inputs, will be used to improve the quality of teaching process in the next cycle. The results of the research in cycle 2 show that the average of student’s activities in learning process is 82.94% and is categorized as good. The classical learning outcomes show that 88.46% of the students reached the KKM, while 11.54% of the students have not reached the KKM. In cycle 2, the classical mastery learning has been achieved. The student’s responses show that 100% of the students are interested in learning model that is applied, or in K13, known as mastery learning. Students who have not complete or reached the KKM will take remedial learning test based on the achievement of learning objectives and indicators. While for the students who have completed study, we will conduct the enrichment.</p></td></tr></tbody></table>

Is it Application of Extended Writing Truly Push Writing Student Ability?

The extended writing allowed the incorporation of the process into the assessment of writing skills and encouraged increased students autonomy. The research was conducted through a classroom action research (CAR) that comprising 18 students. The results of the student's writing text in the cycle 1 and cycle 2 had increased in different scores. The means scores in data source where 61.67 become 63.61 in cycle 1, and after revision, in the cycle 2, the mean score in cycle 2 was 74.72 by application of extended writing project assessment. The successful minimal criterion (KKM) was 70. It can be seen that the application of Extended Writing Project Assessment was increased significantly. The most obvious consequence of this is that the ideas presented by the students are better, and the time needed to complete an essay is much more efficient.