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以九年级数学(下)中“二次函数y=ax~2的图象和性质”的教学为例,谈谈如何改变教材中的思路,变盲目性操作为有意识的行动,供同行参考。
Taking the teaching of the image and nature of the quadratic function y = ax ~ 2 in the ninth grade math (below) as an example, we can talk about how to change the train of thought in the textbook, change the blind operation into a conscious action, reference.