学生的学情分析学生对周围世界有着强烈的好奇心和探究欲望,他们乐于动手操作具体形象的物体,这是他们学习科学的基础。从生活入手,选择学生身边的事物,使学生感到真实,贴近生活实际,并富有一定的趣味性、挑战性。学生已初步掌握淀粉遇到碘酒变蓝的性质,但怎样在实际生活中寻找 Analysis of Students' Academic Situation Students have a strong curiosity and desire to explore the world around them. They are willing to use hands-on objects with specific images as the basis for their study of science. From the beginning of life, choose the things around the students, so that students feel real, close to the reality of life, and full of interesting, challenging. Students have initially mastered the nature of starch iodine turns blue, but how to find in real life