说课举例——小数乘以整数○自治区教研室李宜菁一、教材分析１．小数乘以整数在教材中的地位和作用。（１）小数乘以整数是在学生掌握了整数乘法的意义和计算法则、小数的性质、小数点位置的移动引起小数大小的变化的基础上，进一步学习并掌握的重要知识，是小数乘法的基... Lesson example - decimal multiplied by an integer ○ Autonomous Region Department Li Yi Jing First, the textbook analysis 1. Multiply decimals by the position and role of integers in the textbook. (1) Multiplication of decimals by integers is the basis for further learning and mastery based on the students' mastery of the meaning of integer multiplication and the rules of calculation, the nature of the decimals, and the movement of the decimal places that cause changes in the size of the decimals. ...