在生物学的教学中,往往需要大量的图表来辅助讲解,如用手工绘制则费时费力,而利用近年来日益普及的复印机来制作则很方便。器材普通复印机;投影仪用透明胶片或玻璃纸。制作将教科书或杂志上选用的图表,放在复印机的扫描玻璃板上,将透明胶片放在复印机上容纳复印纸的位置,开动机器即可得到一张清晰的投影片。如用玻璃纸,因很易着色,用市售彩色水笔,就可 In biology teaching, often require a large number of charts to help explain, such as hand-drawn time and effort, and the use of copier in recent years increasingly popular production is very convenient. Equipment ordinary copier; projector transparencies or cellophane. Make a chart of the choice of textbook or magazine on the copier’s scanning glass, place the transparency in the copier to hold the copy paper, and turn the machine on to get a clear slide. Such as cellophane, because of easy coloring, with a commercially available color pen, you can