初中数学“情境—问题”教学的校本化研究——“用同边长的正多边形拼地板”教学案例  

Research in the Teaching Pattern of "Situation-problem" in Our Own School——"Using the Regular Polygons with the Same Length Side to Floor" Teaching Case

作　　者：郑建元[1] 

机构地区：[1]余姚市实验学校

出　　处：《数学教育学报》2009年第1期99-102,共4页Journal of Mathematics Education

基　　金：中国教育学会“十五”规划重点课题——中小学数学情境与提出问题教学实验研究(HFB030740);中国教育学会“十一五”重点推广课题——西南地区数学“情境—问题”教学实验的推广研究(学会0629070)

摘　　要：＂用正多边形拼地板＂的教学,重点探究用同边长的正多边形围绕一点能够密铺的若干种情况,突出通过情境提出问题到解决问题,从＂形＂的探索到＂量＂的深化,从感性的认识到理性的认识,以不同层次的问题来驱动教学,直至学生带着更深层次的问题走出教室,课后继续思考.使学生逐步认识研究问题的一般方法,培养学生发现问题、提出问题和解决问题的能力.This paper was a case of junior school math teaching ＂using the regular polygons with the same length side to floor＂. It was the second lesson teaching in chapter 8.4, the book of Grade Seven, published by East China Normal University. It focused on researching into several complexions that the regular polygons with the same length side could be spreaded closely around the same point. The design of the class focused on the issues to set up a problem and solve the problem through the complexions, it could be deepened from the ＂shape＂ to the ＂quantity＂, from the sensible to the rational, it could be used in different levels of problems to drive the teaching, and it made the students go out of the classroom with more difficult problems and lets them think more after class.

关 键 词：正多边形 密铺 数学情境 

分 类 号：G622[文化科学—教育学]