For nurturing the children who represent the next generation, much more fulfillment of environmental education including the energy problems is demanded. Especially, it is necessary for junior high school students to get interested in the natural energy through environmental education. This study dealt with the wind power generation as the natural energy. The effectiveness of the experiment-teaching materials of the wind power generation and the possibility of improving their awareness of the natural energy were investigated by using the sail wing type windmill. As a result, it was clear that the junior high school students not only become interested in the natural energy but also tend to consider its necessity for our life actually.
