The Vocabulary Mastery Of The Fourth Grade Students Of Sd 1 Wangunrejo Pati In Academic Year 2015/2016 Taught By Using Limbing Up A Ladder Game

Vocabulary is a vital element in language learning. The fourth grade students of SD 1 Wangunrejo Pati have serious problem in mastering vocabulary. They were lack of vocabulary.Learning vocabulary is not easy for students; it is difficult for them to memorize something that is not familiar. Some students might be able to memorize well, but it is not for long term. When they get a new word, they just memorize and do not use in real life.They get difficulties in memorizing every vocabulary that they have learnt. The objective of this research is to find whether there is a significant difference between the vocabulary mastery of the fourth grade students of SD1 Wangunrejo Pati in academic year 2015/2016 before and after being taught by using climbing up a laddergame. The design of this research is experimental research with pre-test and pos-test design. The population of the study was fourth grade students of SD 1 Wangunrejo Pati in academic year 2015/2016.The number of the population was 70 students divided into two classes. The sample is taken by using cluster random sampling. And the sample is IV-A which consists of 35 students.The data were taken from written test, after the students were given the pretest, they were given the treatment for four meeting, and last the students were given posttest. After getting data of pre-test post-test, the researcher analyzes the data using the t-test formula to find out whether or not there is a significant difference between the vocabulary mastery of the fourth grade students of SD 1 Wangnrejo Pati in academic year 2015/2016 before and after being taught by using climbing up a ladder game. The result of the research shows that the mean score of the vocabulary mastery of the students before being taught by using climbing up a laddergame is 68.71 and the mean score of the vocabulary mastery of the students after being taught by using climbing up a ladder game is 83.42 and t-obtained 12.60 in the level of significance α= 0.05 and degree of freedom “N-1, 35-1=34, the t (table) is 2.042. While, the t (obtained) value is 12.60 falls in critical region”. Because t (obtained) falls in the critical region, the research hypothesis H1, which states that there is a significant difference between the vocabulary mastery of the fourth grade students of SD 1 Wangunrejo Pati in academic year 2015/2016 before and after being taught by using clombing up a ladder game”, was confirmed