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近年来,生态环境问题已成为全球所共同面临的最突出的问题之一,对学生进行生态教育愈来愈显得重要和紧迫.在生物课教学中,笔者着重从五个方面强化学生的生态意识.一、从实验观察入手,引导学生树立生物与环境相互依存的辩证观点生物的生存离不开环境,生物依靠环境供给的物质和能量而生活,受到光、大气、水、温度及其它生物等环境因子和人的限制;同时生物的生命活动又不断地影响、改变环境,也影响人类的生存.为使学生树立这一辩证观点,我引导学生分别做了蚯蚓与阳光、水分、温度关系和菜豆的向光性、向水性实验,再通过蚯蚓生活之地的环境、菜豆生长的条件的观察,使学生弄清蚯蚓、菜豆个体对环境的依赖关系,再组织学生
In recent years, the problem of ecological environment has become one of the most prominent problems faced by the global community. Ecological education for students has become more and more important and urgent. In biology teaching, the author focuses on strengthening students’ ecological awareness from five aspects. 1. Start with experimental observations and guide students to establish a dialectical perspective of the interdependence between biology and the environment. The survival of living organisms is inseparable from the environment. Biological life depends on the material and energy of the environment supply, and it is affected by light, atmosphere, water, temperature and other organisms. Environmental factors and human constraints; at the same time, biological life activities continue to influence and change the environment, as well as the survival of human beings. In order to enable students to establish this dialectical point of view, I guide students to do the relationship between sunshine, moisture and temperature. The photosynthetic and water-borne experiments of kidney bean, observation of the conditions of the habitat of the habitat, and the conditions for the growth of kidney bean, enable the students to clarify the dependence of the individual and kidney beans on the environment, and then organize the students.