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生物学是一门实验性科学。做好生物实验可帮助学生理解概念，加深记忆，是生物教学的重要内容，又是提高教学质量的有效方法。因此，生物实验课在全面实施素质教育的今天倍受师生重视。为了提高实验效果，更好地开发学生的智力和创造能力，笔者根据初中生的年龄和心理活动等特?
Biology is an experimental science. Doing a good biological experiment can help students understand the concept and deepen their memory. It is an important content of biology teaching and an effective method to improve teaching quality. Therefore, the biological experiment course has been highly valued by teachers and students today in the full implementation of quality education. In order to improve the experimental results and better develop the students’ intelligence and creativity, the author according to the junior high school students’ age and mental activity special?