Using an English grammar book and a dictionary effectively is indispensable for college English learners. But most remedial students don't have this skill. This prevents them from learning English by themselves and learning at collage English classes. But learning this skill becomes too boring for them when college teachers use the same approach as these students have already taken them at junior high schools or high schools. Therefore to make learning this skill effective and interesting for them, the author requested a junior high school to hold an extra-curricular class in which the remedial students could teach basic English grammar. Through this arrangement, the college remedial students tried to learn more eagerly because they didn't want to get embarrassed in front of the junior high school students. As a result, they managed to acquire the basic English skills of how to use an English grammar book and a dictionary. They are now ready to study English by themselves with less help.