The aim of this study was to develop effective English lessons through ‘collaborative problem solving.’ In reading activities, it is necessary for students to consider the background of the subject matter and their feelings about it. Through collaborative problem solving in groups, students are able to express their own points of view. Listening to the ideas of other students leads to obtaining a better understanding of the background of the subject matter and cultivating their feelings about it. These activities also help Japanese students develop richer expression in the Japanese language.