确定位置三要素的生成与理解是确定位置(二)一课的重点,教材所呈现的情景是让学生在情景中发现要素,而很多教师选择带领学生在操作中体悟要素。对“确定位置(二)”大量课例中三要素的引出与归纳进行研究,可以将之归纳成三个方面。 Determine the location of the three elements of the formation and understanding is to determine the location (b) of the focus of a lesson presented by the scene is to allow students to find elements in the scene, and many teachers choose to lead students in understanding the elements of the operation. The research on the derivation and induction of the three elements in a large number of cases of “determining the position (b) ” can be summarized into three aspects.