17要是你在野外迷了路

1、新课导入,没有地图我们又该怎么办呢？,17 要是你在野外迷了路,R二年级语文下册,执教老师：赵红梅,整体感知,本文以诗歌的形式讲述了在野外迷路后辨别方向的 方法。,四种,太阳,北极星,大树,积雪,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才

2、路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才

3、路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,要是你在野外迷了路， 可千万别慌张。 大自然有很多天然的指南针， 会帮助你辨别方向。,课文解读,古代的司南,指南针,大自然中的“天然的指南针”是怎样帮助人们辨别方向的呢？轻声读课文第2-5小节，然后在小组里讨论。,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路

4、,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路

5、,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,太阳是个忠实的向导， 它在天空给你指点方向。,忠实,向导,请同学们结合生活实际说一说太阳是如何给我们指点方向的？,清晨,傍晚,东,西,太阳是个忠实的向导,状元成才路,状元成才路,状元成才路,

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10、元成才路,北极星是盏指路灯， 它永远高挂在北方。 要是你能认出它， 就不会在黑夜里乱闯。,北极星是盏指路灯,把北极星比作指路灯，形象地告诉我们在黑夜如何利用北极星识别方向。,天上星星那么多，哪颗是北极星呢？,先看北斗七星，把北斗七星勺边上的两颗小星连起来，从勺口方向延伸至两颗小星距离约5倍处，那颗最闪亮的星就是北极星。,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状

11、元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状

12、元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,要是碰上阴雨天， 大树也会来帮忙。 枝叶稠的一面是南方， 枝叶稀的一面是北方。,“大树”能给人帮忙，把树当成人来写，运用了拟人的修辞手法。,大树也会来帮忙,思考：树叶的稀稠和阳光有什么关系？,树的枝叶稀稠和太阳光照射时间长短及照射量多少有关。树冠的南面受太阳光照射多，树叶茂密；

13、北面由于受遮挡，光照较少，树叶长得稀。,稠 稀 南 北,雪特别怕太阳， 沟渠里的积雪会给你指点方向。 看看哪边雪化得快，哪边化得慢， 就可以分辨北方和南方。,思考：怎样用沟渠里的积雪来分辨南北方向？,冬天，太阳从南边射过来，沟渠里的积雪朝南的一面受照射的时间长，化得快，积雪朝北的一面，太阳照射不到，雪化得慢。,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,

14、状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,

15、状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,通过学习，你知道了哪几种野外辨别方向的方法？,四种,晴天看太阳,晚上看北极星,雨天看大树,雪天看积雪,太阳中午在南边，树影指北方。,北极星在北方。,枝叶稠的那边是南方，稀的那边是北方。,朝南的一面化得快，朝北的一面化得慢。,要是你在野外迷了路， 可千万别慌张。 大自然有很多天然的指南针，

16、 需要你细细观察，多多去想。,告诉了我们找到天然的指南针的方法：细细观察，多多去想。,思考：你还知道哪些辨别方向的方法？,年轮密集的是北方， 年轮稀疏的是南方。,岩石上有青苔的一面是北侧， 另一面为南侧。,观察蚂蚁的洞穴，洞口大都是朝南的。,课堂小结,这首诗歌介绍了在野外迷路后辨别方向的四种方法，告诉我们要留心观察周围的事物，发现大自然的奥秘。,课后习题参考答案,朗读课文。说说课文里写了哪几种“天然的指南针”，它们是怎样帮助人们辨别方向的。,朗读指导： 本文采用诗歌的形式，向我们介绍了在野外准确判断方向的办法，朗读时速度稍慢，注意停顿。,参考答案： 本文讲述了四种“天然的指南针”： 1.太阳；2.北极星；3.大树；4.积雪。 中午的时候太阳在南边，地上的树影指向北方；北极星永远高挂在北方；树叶稠的一面是南方，枝叶稀的一面是北方；在沟渠里，雪化得快的一面是南方，雪化得慢的一面是北方。,读一读，记一记。,慌张