The objectives of the research are to find out how I use Lebah Interactive Multimedia to improve students’ vocabulary of the fifth grade of SDN 2 Sendang Jepara and to find out Lebah Interactive Multimedia as media can solve unconducive class condition in SDN 2 Jepara. Problem encountered in this research was the low students’ vocabulary mastery and the unconducive class condition at the fifth grade of SDN 2 Sendang Jepara.

The subjects of the research was the fifth grade students of SDN 2 Sendang Jepara.The research was carried out at SDN 2 Sendang Jepara located on Sendang village, Kalinyamatan Jepara From May to June 2015. In this study, I used classroom action research method. I carried out three cycles in the research and carried out four steps namely planning the action, implementing the action, observing and monitoring the action and reflecting the action. Each cycle was the continum steps from the implementation of the previous cycle.There were two types of data in this action research, quantitative and qualitative data. The quantitative data was the score of test. Meanwhile, qualitative data was the information of teaching and learning process gotten from interviews, questionnaires, field notes, and observations.

The result of the research showed that the improvement of students’ mean score for each cycle. For instance, the mean score of students’ vocabulary mastery in the pre-test was 52, cycle 1 was 62, cycle 2 was 66, and cycle 3 was 73 assessed by four indicators of vocabulary mastery which were meaning, pronouncing, spelling and the using of the words.To sum up, Lebah Interactive Multimedia can be used to improve students’ vocabulary mastery and make students attentive, enthuastic, and active in the class. This condition makes the class conducive. It is ideal condition for learning environment to improve students’ vocabulary.

Key words : Vocabulary mastery, Lebah Interactive Multimedia, Classroom Action Research