活动是指由行为动作构成的主体与客观世界相互作用的物质实践过程。活动教学则是在教师的积极指导下,创设各种有效活动机会,促进学生主动自觉地参与探求新知,运用知识,从而获得全面发展的一种教学思想。下面仅就“两位数减一位数(退位)”的教学谈谈活动教学的模式。 Activities refer to the material practice of the interaction between the subject constituted by the action actions and the objective world. Active teaching is under the active guidance of teachers, creating a variety of effective activities to promote students to actively participate in exploring new knowledge, use of knowledge, so as to obtain all-round development of a teaching idea. The following only on the “double-digit minus one-digit (abdication)” teaching to talk about teaching activities.