新课程的教育理念是提高生物科学素养,面向全体学生,倡导探究性学习,注重与现实生活的联系。现代化教学提倡自主—合作—探究式学习,教师是活动的组织者,学生是活动的主体。如何激发学生的学习兴趣和探究精神呢?一、构建模型,化抽象为具体构建模型是必修教材的一大特点,模型的种类有物理模型、概念模型、数学模型等。物理模型用实物或图片形式直观地表达认识对象的特征,在教学中适当应用模型可取得事半功倍的效 The educational concept of the new curriculum is to improve the quality of biosciences, to all students, to promote inquiry learning, and pay attention to the connection with the real life. Modern teaching advocates autonomy - cooperation - inquiry learning, teachers are the organizers of activities, students are the main activity. How to stimulate students’ interest in learning and explore it? First, to build a model, to abstract the specific model for building a compulsory textbook is a major feature of the model types of physical models, conceptual models, mathematical models. The physical model uses the physical or the picture form to express the characteristic of the cognition object intuitively, and can obtain the multiplier effect with appropriate use of the model in the teaching