This research has been realized to determine whether students’ academic success increases when teacher parents as expert in their fields teach courses instead of classroom teachers with the aim of giving a parent participation proposal. In the research, the study group includes 4th grade elementary school students which has been realized experimentally in controlled pre-test and final test model. Success test developed by the researcher has been used as data collection instrument which is determined with sampling method with aimed study group in the research. Paired groups t-test has been user in the data analysis. According to the research findings, when field expert teacher parents enter the course and when these are compared with the courses which classroom teachers enter, it has been determined that academic success of the students increase at the same level. However, the result of permanence of the knowledge being higher has been reached when compared with the courses which classroom teachers enter. According to the results, it is proposed that field expert teacher parents should enter the courses of classroom teachers in teaching of some subjects. This also can be accepted as a new parent participation proposal.