数学活动的开展,素材的选择需要匹配性,要利于在短暂的课时内,让学生汲取深刻的活动体验,高效的悟化接纳基本知识经验以及在此基础上衍生的真切的感悟。【案例】师:今天我们先来解决一个中国古代数学问题——牧童饮马问题。 The development of mathematics activities and the choice of materials need to be matched, and it is beneficial to allow students to learn profound activity experiences within a short period of time, and to effectively understand and accept basic knowledge and experience, as well as real insight derived from it. [Case] ​​Teacher: Today we first solved a problem of ancient Chinese mathematics—the question of the shepherd boy drinking horses.