In technology education, it is important to learn basic knowledge and skills regarding the “technology of energy conversion.” From this viewpoint, we considered a nine-hour technology class that is planned and taught using the teaching material, “TECH mirai.” As a result of this practice and the examination of 269 students (eighth grade), it was found that the usefulness of technology education and student interest in new technology and consumer electronics improved. The students self-evaluated their technological literacy, such as problem-solving ability, cooperative attitude, and recognition of technology. These results indicate that planning and teaching using “TECH mirai” was able to contribute to improved technological literacy.