This research aimed to describe and analyze students? proficiency in constructing sentence in simple present tense before and after applying the PWIM, and the influencing factors that affects students? proficiency. The sample of this research is the 24 students of class 8B in Frater Don Bosco Junior High School Tomohon. This is an experimental type of research with qualitative and quantitative approach. A quasi-experimental, pretest and posttest one-group design is used in this research. The main theory used in this research is the theory of picture word inductive model. The data are gathered through observation, questionnaire, and test. A qualitative and quantitative method applied in analyzing the data. Meanwhile the other supported theory used are second language learning theory and grammatical theory. Based on the paired sample t-test conducted, it is known that the PWIM is significantly affect the students? proficiency in constructing sentence in simple present tense.