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解题教学应当还原一个真实自然的思维过程。因为只有过程真实自然,其中蕴含的思维策略与思想方法才能在学生的心田落地生根,并具有旺盛的生长力。一节九年级试卷讲评课中,执教者对一道中考题的讲解过程引发笔者对解题教学的思考。在此整理成文,与同行交流。1讲评案例概述题目(2016河北省中考题)如图1,∠AOB=120°,OP平分∠AOB,且OP=2。若点M、N分别在OA、OB上,且△PMN为等边三角形,则满足上述条件的△PMN
Problem solving teaching should restore a true and natural thinking process. Because only the process is real and natural, the thinking tactics and thinking methods contained therein can take root in the heart of students and have strong growth potential. A ninth grade papers in the commentary class, the coaching staff to explain the process of a senior high school entrance examination questions triggered the author’s thinking on problem-solving teaching. Organize the text here, communicate with your peers. 1 Comment Case Overview Title (2016 Hebei province exam questions) As shown in Figure 1, ∠ AOB = 120 °, OP bisects ∠ AOB, and OP = 2. If points M and N are on OA and OB, respectively, and △ PMN is an equilateral triangle, ΔPNN satisfying the above condition