부제 : ABSTRACT INTRODUCTION BOOMERANG PLANE BAMBOOMERANG BOOMERANG PAPER CUP PAPER FLYIMG RING CONCLUSIONS
The authors have developed for children and analyzed returnable toys. In this paper, returnable toys (boomerang stunt planes, bamboomerangs, and boomerang paper cups) and paper flying rings are introduced. These analyses are able to use as matters of education of mechanism for students of College of Technology. It seems that these toys are very much effective to technology education because of expected matters.