《愉快的自然课》是第一册的绪论课,也是全套自然课本的绪论课。它是儿童学习自然课的第一课,目的在于向儿童介绍自然课的学习内容和学习方法,引起儿童对学习自然课的兴趣爱好。因为这是“第一炮”,打得好坏,对学生今后学习这门功课的影响是很大的。好比吃花生米,第一颗香脆可口,越吃越想吃;如果第一颗是个发霉的苦花 “Happy Nature Class” is the first volume of introductory class, but also the introduction of a full set of natural textbooks. It is the first lesson in children's learning of nature. The purpose of this course is to introduce children to the learning content and learning methods of natural classes, and to attract children's interest in learning natural subjects. Because this is the “first shot,” playing well, the impact on students' future learning this homework is great. Like eating peanuts, the first crispy and delicious, eat more to eat; if the first is a moldy bitter flower