“双减”背景下的初中数学单元作业设计与实践——以“有理数”单元为例

On the Assignment Design and Practice of the Unit of Junior Middle School Mathematics with the Background of“Double Subtraction”——Taking the Unit of“Rational Number”as an Example

以初中数学“有理数”单元作业设计为例,通过整体规划单元信息、研制单元作业目标、确定单元作业内容、完善作业评价体系,全面关注作业设计,包括作业设计目标、作业内容与类型、作业难度以及作业呈现方式等,实现作业提质减量,充分体现数学作业的价值。

Taking the assignment design of the unit of“rational number”as an example,this paper plans the key points of the unit systematically,develops the assignment goal of the unit,determines the content of the assignment of the unit,improves the assignment evaluation system,and comprehensively pays attention to multiple aspects of the assignment design,such as the design goal,the content and type,the difficulty and the presentation mode of the assignment,etc.,so as to improve the quality and reduce the quantity of the assignment and fully reflect the value of the mathematical assignment.