《平行四边形的面积计算》教学设计(国外英文资料).docVIP

《平行四边形的面积计算》教学设计(国外英文资料) Data worth having From the usual study, accumulation and summary Where there is a problem, there must be some Please also criticize and correct me! The teaching plan of the area of parallelogram Daxi two Ye Mingzai Content of courses： The content of 81 of the textbook Teaching target: Enable students to explore Understand and grasp the formula for calculating the area of a parallelogram The area of the parallelogram is calculated by the accountant By operation, observation and comparison activities Preliminary conversion method Train students ability of observation, analysis, generalization and deduction Developing students spatial concept Guide the students to understand the thinking method of transformation Train students thinking ability and the ability to solve simple practical problems Teaching emphasis: Enable students to explore Understand and grasp the formula for calculating the area of a parallelogram The area of the parallelogram is calculated by the accountant Teaching difficulties: Hands-on operation by students A parallelogram is converted into a rectangle by cut and complement Find the link between two figures A formula for calculating the area of a parallelogram is derived Teaching aids preparation: Multimedia, parallelogram, scissors and so on Teaching process: First, create situations and elicit subjects 1, the animal village lived many small animals The first bear lived in the village He has a radish in the west end of the village The family lived in the Village West He has a radish in the village head They find it inconvenient to run around and work Therefore They discussed it together Little bear said, rabbit! Its hard for us both to run and run like this every day We might as well have changed our land The rabbit said, ok! So... They took a look at the two fields Feel embarrassed It turned out that the two plots were different in shape One piece is rectangular One piece is parallelogram 2 division: is this fair exchange