Various social services are now required for the colleges. Technological education is supposed to be one of those services. The authors have taken an active part in the teaching services for primary school pupils. This paper indicates our experiences from those services. Although it is said that many pupils are not fond of science, this is not absolutely the truth. Many boys and girls love science. They are interested in many natural phenomena. They are eagerly studying how to make model planes, model cars and other items. We could learn a lot of things from the pupils who participated in our classes.