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一、问题的提出生物学是以实验为基础的学科。所有的科学知识都是在观察和实验的基础上发展起来的。因此,在教学中进行演示实验和学生实验,让学生了解实验步骤、观察实验现象,不但能够使学生对科学事实获得具体的、明确的认识,打好理解概念和规律的必要的基础,而且观察和实验对培养学生的观察和实验能力,培养学生实事求是的科学态度
First, the proposed biology of the problem is based on experiments. All scientific knowledge is developed on the basis of observation and experimentation. Therefore, demonstration experiments and student experiments are conducted in teaching to allow students to understand experimental procedures and observe experimental phenomena. This not only enables students to obtain concrete and clear understanding of scientific facts, but also lays a solid foundation for understanding concepts and laws, and observes. And experiment to cultivate student’s observation and experiment ability, and cultivate students’ scientific attitude of seeking truth from facts