幼儿园大班社会教案：吸水小细管
<p><span><strong>【活动目标】</strong></span></p><p><span> </span></p><p><span>1<span>、通过游戏活动，使幼儿直观地感受到生活中的毛细现象。</span></span></p><p><span> </span></p><p><span>2<span>、培养幼儿观察力及动手操作的能力。</span></span></p><p><span> </span></p><p><span><strong>【活动准备】</strong></span></p><p><span> </span></p><p><span>1<span>、毛巾、海绵、布、吸水纸、纱布等吸水材料及塑料盆若干。</span></span></p><p><span> </span></p><p><span>2<span>、红、黄、蓝、绿颜色水及红墨水，大白菜叶，细管</span><span>(</span><span>医用采血管</span><span>)</span><span>若干。</span></span></p><p><span> </span></p><p><span>3<span>、白色皱纹纸做成的纸花，塑料小碗若干。</span></span></p><p><span> </span></p><p><span>4<span>、图片</span><span>(</span><span>植物靠根须吸水，吸了红墨水的萝卜，生菜等</span><span>)</span><span>。</span></span></p><p><span> </span></p><p><span><strong>【活动过程】</strong></span></p><p><span> </span></p><p><span>一、设置游戏环境，提供材料，让幼儿在游戏中发现这些材料都能吸水。</span></p><p><span> </span></p><p><span>1<span>、玩一玩：引导幼儿用教师提供的材料帮水搬家。</span></span></p><p><span> </span></p><p><span>教师：今天，老师请来许多水，可是它们现在住在小盘子里太不舒服了，它们想搬到宽敞的大盆子里，怎么办呢<span>?</span></span></p><p><span> </span></p><p><span>它们想考考你们。不用倒的办法，用小盆子旁边的东西来帮水搬家。</span></p><p><span> </span></p><p><span>2<span>、说一说：你是用什么办法帮水搬家的</span><span>?</span></span></p><p><span> </span></p><p><span>鼓励幼儿说出自己是怎么做的。</span></p><p><span> </span></p><p><span>小结：这些东西都能帮水搬家，它们都能吸水。</span></p><p><span> </span></p><p><span>3<span>、想一想：还有哪些东西能吸水</span><span>?</span></span></p><p><span> </span></p><p><span>通过游戏活动，使幼儿直观地感受到生活中的毛细现象。培养幼儿观察力及动手操作的能力。<span>(</span><span>那植物能不能吸水呢</span><span>?)</span></span></p><p><span> </span></p><p><span>二、教师设疑，激发幼儿探究的欲望。</span></p><p><span> </span></p><p><span>1<span>、</span><span>“</span><span>白菜能吸水吗</span><span>?”</span><span>请幼儿试一试，将新鲜的大白菜叶放入红色的墨水里，可看到白菜叶渐渐由下向上变红。</span></span></p><p><span> </span></p><p><span>2<span>、</span><span>“</span><span>细管能吸水吗</span><span>?”</span><span>请幼儿试一试，用细管去吸颜色水，当细管一接触到水时，就能吸上水。</span></span></p><p><span> </span></p><p><span>3<span>、看一看白菜发生了什么变化，鼓励幼儿找一找白菜里的</span><span>“</span><span>小细管</span><span>”</span><span>，掰开菜梆，能看到非常清楚红了的</span><span>“</span><span>小细管</span><span>”</span><span>。</span></span></p><p><span> </span></p><p><span>4<span>、幼儿欣赏图片</span><span>(</span><span>吸了红墨水的萝卜，生菜、百合花等</span><span>)</span><span>。</span></span></p><p><span> </span></p><p><span>弯弯曲曲的像红线似的<span>“</span><span>小细管</span><span>”</span><span>，了解生活中的无处不在的毛细现象。</span></span></p><p><span> </span></p><p><span>5<span>、讨论：</span></span></p><p><span> </span></p><p><span>毛巾、海绵、纱布，吸水纸里有<span>“</span><span>小细管</span><span>”</span><span>吗</span><span>?</span></span></p><p><span> </span></p><p><span>小结：这些放进水里以后，能吸上水的东西里都有<span>“</span><span>小细管</span><span>”</span><span>，有的</span><span>“</span><span>小细管</span><span>”</span><span>很小很细不容易看见，有了这些</span><span>“</span><span>小细管</span><span>”</span><span>，毛巾、海绵等才会吸水。</span></span></p><p><span> </span></p><p><span>三、想一想，玩一玩。</span></p><p><span> </span></p><p><span>1<span>、教师设疑：怎样把白色纸花变成彩色的花呢</span><span>?</span></span></p><p><span> </span></p><p><span>引导幼儿想一想：能不能让纸里的小细管来帮忙吸颜色水呢<span>?</span></span></p><p><span> </span></p><p><span>2<span>、幼儿操作，将纸树变成彩树。</span></span></p><p><span> </span></p><p><span><strong>【活动结束】</strong></span></p><p><span> </span></p><p><span>小朋友们将彩花送给树妈妈，给树妈妈打扮。</span></p>
页:
[1]