CAJ | 학술논문

在多媒体投影屏幕上方两角安装红外接收处理器，并给教师配备一支书写时可发射红外光的书写教鞭，将多媒体投影教学设备变成大屏幕的触摸屏，便于教师开展教学活动，与学生互动交流，直接在投影屏幕上操作计算机，并进行各种注释书写操作。
재다매체투영병막상방량각안장홍외접수처리기，병급교사배비일지서사시가발사홍외광적서사교편，장다매체투영교학설비변성대병막적촉모병，편우교사개전교학활동，여학생호동교류，직접재투영병막상조작계산궤，병진행각충주석서사조작。
To improve the efficiency and quality of teaching an innovation in educational hardware is presented. Two infrared receiver processors composed of photosensitive element, infrared reflective mirror rotated with changeless rate and infrared emitter as datum time are installed at the comer of multimedia projection screen to locate infrared pen used by teachers. Computer can be operated from multimedia projection screen and teachers are released from computer console to write on large screen and communicate with students at random.