ABSTRACT
BeforeusingtheOHPitisimportantforyoutobefamiliarwiththewayit works.Youmustensurethat:
theprojectorisworking,iscleanandthatthereisasparebulb; theprojectorisproperlyfocusedsothattheimageisclear; theimageisdirectlyprojectedontothescreenandthatitfitsthespace
available; thetraineescanclearlyseethescreen.
