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生物学是一门集实验性、实践性及科学性于一身的自然科学,随着现代科学的发展,它越来越显示出其二十一世纪领先科学的独特魅力。但是,在实际教学中生物实验的开设率却不太高,分析其中原因:一、缺少实验材料;二、实验复杂,前期准备较多。所以,很多老师选择演示实验或少做实验,这就使得教学时存在一些机械性,不能充分发挥学生主观的能动性。在完成初中生物一轮教学后,我发现,有很多材料实用又方便,还可以连续使用。下面,我介绍两个在生物实验中,取材方便,
Biology is a natural science that integrates experimentality, practicality and science. With the development of modern science, biology increasingly shows its unique charm of leading science in the 21st century. However, the actual teaching of biological experiments in the establishment rate is not too high, analyze the reasons: First, the lack of experimental materials; Second, the experiment complex, more preparation. Therefore, many teachers choose to demonstrate experiments or less to do experiments, which makes teaching there is some mechanical, can not give full play to students’ subjective initiative. After completing a junior high school biology teaching, I found that many materials are practical and convenient and can be used continuously. Below, I introduce two in biological experiments, drawing convenient,