The Development of Vocabulary in Bahasa Indonesia Textbook for Senior High School

Vocabulary is the most basic part of a language.The more vocabularies a person has, the more competent that person is in communicating.Mastery of vocabulary as a material for one's communication should be developed throughout life because the language is always evolving.Related to this, the paper aims to describe (1) the development of vocabulary in high school student books, (2) favorite entries, and (2) learning scenarios for vocabulary development.To disclose these, this research uses the entry application, basic vocabulary list, and literacy strategies in learning.The results of the analysis show that (1) the development of the number of Indonesian language entries in the high school student's book is not good, (2) favorite entries of SMA are "yang" and "dan"; (3) Learning scenarios in vocabulary development can be carried out by various means using other sources outside the student's book to further enrich the vocabulary.This is accompanied by a literacy strategy in learning.The results of this study can be used by teachers to further improve learning so that the development of high school students will be better.