教学目标:1.引导学生经历科学探究的全过程。能根据假想答案,提出进行简单探究活动的大致思路。2.能够运用多种方法比较液体的多少,并明确必须使用同一标准。体会到人的感觉常常不够准确,这样需要借助仪器来测量。初步学会使用量筒,理解毫升的含义。3.培养学生尊重事实、敢于提 Teaching objectives: 1. Guide students through the whole process of scientific inquiry. According to the hypothetical answer, put forward the general idea of ​​simple inquiry activities. 2. Can use a variety of methods to compare the amount of liquid, and clearly must use the same standard. Feel the feeling of people often not accurate enough, so you need to use instruments to measure. Preliminary learn to use measuring cylinder, understand the meaning of ml. 3. Cultivate students respect the facts, dare to mention