教材分析本课教材安排了让小电珠亮起来等探究活动和拓展活动。在引导学生对活动中产生的问题进行猜想和推测时,还要引导他们通过实验来验证自己提出的猜想。学生将自选材料,自行试用各种连接方式使小电珠亮起来,并设法控制小电珠的亮与灭,通过分析、比较、总 Textbook analysis This lesson arranged for the small beads lit exploration and expansion activities. While guiding students to guess and speculate on the problems arising from the activities, they should also be guided to verify their own conjectures through experiments. Students will choose their own materials, try out a variety of connections on their own to light up the small beads, and try to control the small beads of light and off, through analysis, comparison, total