The Strategy Used by Formal and Informal English Teachers in Teaching Vocabularies

---Teachers must have a good strategy in teaching vocabulary in order to provide well understanding in teaching. This study aimed (1) to identify the strategy used by the teachers; (2) to identify the advantages of the strategy they used; (3) to identify the most strategy used in teaching vocabulary. The participant in this study is English teachers from formal course (SDN Sukadamai 3 Bogor) and informal course (Happy English Course 2 Pare). The data of this research were obtained from observation checklist and interview with the teachers. There were several strategies used by formal and informal English teachers. Teachers in formal course used memorizing in teaching vocabulary; meanwhile one of the teachers in informal course used vocabulary self-collection and another teacher used the same way as two teachers in formal course. Therefore, teachers must be more creative in improving the strategy in teaching vocabulary.