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媒体是指直接介入教学活动,作为教学过程中传输信息的设备和手段。电教媒体有视觉媒体(如:幻灯机、投影仪、电影机、录像机等)、听觉媒体(如:收录机、电唱机、扩音机等)两种。 在自然教学中,运用电化教学手段,遵循直观形象的教学原则,根据教学需要,对各种媒体加以比较、选择,进行多媒体的立体教学,以刺激学生视听等多种感官的同时活动,让学生直接或间接的感知,有助于学生形成鲜明、生
Media refers to the direct involvement in teaching activities, as the teaching process of transmission of information equipment and tools. Audio-visual media visual media (such as: projector, projector, movie machine, video recorder, etc.), audio media (such as: tape recorders, record players, amplifiers, etc.) two. In the teaching of nature, using the method of electrified teaching, following the teaching principle of visual image, according to the teaching needs, comparing various media, selecting and carrying on the multi-media three-dimensional teaching so as to stimulate students' Direct or indirect perception, help students form a distinct, raw