基于现象和过程可视化的化学实验——以“化学花园”为例
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摘要
通过改变观察方式来实现实验过程和现象的可视化。通过在手机后置摄像头夹上手机微距镜头来实现微距摄影功能,通过录像捕获试管内硅酸钠溶液与绿豆大的金属盐反应画面,用"拍大师"视频编辑软件按需设置"播放倍数",以及使用教学多媒体展示来观察实验现象。结果表明,此方法能够捕获反应全过程,得到清晰、放大的画面,实验现象明显。对实验细节现象做出了更准确的描述,了解到更丰富的细节信息。
By changing the observation method to visualize the experimental process and phenomena. Macro photography function was achieved by clamping macro lens on the rear camera of mobile phone, the reaction of sodium silicate solution and mung bean big metal salt in a test tube was captured by video, the video editing software "master" was used to set play times, and multimedia teaching showed the experiment phenomena. Results show that this method can capture the reaction process, get clear and enlarged pictures, and the experimental phenomena details are obvious.
By changing the observation method to visualize the experimental process and phenomena. Macro photography function was achieved by clamping macro lens on the rear camera of mobile phone, the reaction of sodium silicate solution and mung bean big metal salt in a test tube was captured by video, the video editing software "master" was used to set play times, and multimedia teaching showed the experiment phenomena. Results show that this method can capture the reaction process, get clear and enlarged pictures, and the experimental phenomena details are obvious.
引文
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[2] 李华.美学导论.武汉:湖北科学技术出版社,2010
[3] 杨卫国.化学教学,2011(7):15-16
[4] 凌一洲.化学教育(中英文),2018,39(7):57-59
[5] 梁琰.美丽的化学反应.北京:清华大学出版社,2016:76-131
[6] 王都留.化学教育,2009,30(8):62
[2] 李华.美学导论.武汉:湖北科学技术出版社,2010
[3] 杨卫国.化学教学,2011(7):15-16
[4] 凌一洲.化学教育(中英文),2018,39(7):57-59
[5] 梁琰.美丽的化学反应.北京:清华大学出版社,2016:76-131
[6] 王都留.化学教育,2009,30(8):62