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一、教材分析《画线》是苏教版信息技术教材(2013年修订)三年级第九课的内容。在学这一课之前,学生已经掌握了画方形和圆形、填充颜色等操作,这一课主要的任务是让学生学习“直线”“曲线”工具的使用方法,并通过实践操作熟练掌握。本课分三个部分:1.通过直线和曲线线条让学生发挥想象,用数字连线图学习并掌握画直线的方法;2.用曲线工具绘制河水的波浪线和雨中的小花伞,通过这个练习,使学生掌握好三种曲线的画法,这部分是本课
First, the textbook analysis “Drawing line” is the content of the ninth edition of the third edition of the third grade of information technology textbooks (revised in 2013). Before taking this lesson, students have mastered the operation of painting square and circle, filling colors, etc. The main task of this lesson is to let students learn how to use the “Line ” “Curve ” tool, Proficiency This course is divided into three parts: 1. Students through the lines and curves of imagination, with a digital connection diagram to learn and grasp the method of drawing a straight line; 2. Curve tool to draw the wavy lines of the river and the small umbrella in the rain, through this Practice, so that students master the three curves of painting, this part is the lesson