通过“画”数学,培养学生的核心素养——“运白菜”一课的教学创新与教学感悟

On the Cultivation of Students’ Core Literacy by "Drawing" Mathematics: The Teaching Innovation and Teaching Experience of the Lesson "Transporting Chinese Cabbages"

在"三位数连减法"课堂教学中,教师打破计算课教学常规,放手让学生尝试通过画图表达数量关系,帮助学生直观地理解"三位数连减法"的算理和小括号的作用。学生在主动探究和全班交流中思考与感悟新知,经历真正意义上的数学活动,培养学生的数学核心素养。

In the "three-digit continuous subtraction" classroom teaching,the teacher breaks the teaching routine of the calculation class,letting the students try to express the quantitative relationship by drawing,to help students intuitively understand the calculation rules of "three-digit continuous subtraction" and the role of parentheses.Students think and feel new knowledge in active inquiry and whole class communication,experience real mathematics activities,and in this way,students' core mathematical literacy is cultivated.