"This study aimed to improve writing skills in students, including increased vocabulary acquisition in university writing classes by incorporating both Extensive Reading and Explicit Vocabulary Teaching. The class used for this research had 29 students and ran for one semester. Compared with the 75% of the students who completed their task of reading 20 Extensive Reading texts, the 25% of students who could not complete them showed lower writing accuracy in writing tasks. 37% of students out of the 75% of students also showed an increase in reading speed of on average of 20 seconds over one minute on the post-test. Moreover, Explicit Vocabulary Teaching of both synonyms and derivatives showed an increase in post-test scores of three times higher compared to the pre-test. These findings can hopefully contribute to providing a valuable baseline for writing teachers.