论文部分内容阅读
加法运算律是“运算律”单元的第一节课,教学内容是加法的运算律,包括了加法的交换律和结合律,教材首先安排教学交换律,接着教学结合律,因为交换律的内容比结合律简单,学生对交换律的感性认识比结合律丰富,先教学比较容易的交换律,有利于引起学生探索的兴趣。其次是能提高教学效率。交换律的教学方法和学习活动可
Addition algorithm is the first class of “algorithm ” unit, teaching content is the law of addition operation, including the addition of the exchange law and the law of combination, the teaching material arrangement of teaching exchange law, followed by teaching law, because the exchange law The content is more simple than the combination law, the student’s perceptual understanding of the exchange law is more than the combination law, the exchange of law easier to teach, is conducive to arouse the interest of students to explore. Second is to improve teaching efficiency. Exchange of teaching methods and learning activities can be