核心素养下的课堂教学应关注思维的发展。正如郑毓信教授所说,“数学核心素养的基本涵义就在于:我们应当通过数学教学帮助学生学会思维,并能使他们逐步学会想得更清晰、更深入、更全面、更合理。”学生的思维发展不能脱离具体的学习内容而存在,它是在富有挑战性和创造性的思维活动中慢慢孕育而成,因此,“在思维中学会思维”不仅应该成为教学的理念,更应该成为课堂学习的常态。“用字母表示数”是小学阶段正式学习代数的开 The classroom teaching under the core literacy should pay attention to the development of thinking. As Professor Zheng Yuxin said, “The basic meaning of mathematical core literacy lies in: We should help students to learn thinking through mathematical teaching and enable them to gradually learn to think more clearly, deeply, comprehensively and rationally.” Students The development of thinking can not be divorced from specific learning content. It is slowly born in challenging and creative thinking activities. Therefore, “thinking in thinking” should not only become the teaching philosophy, but also should Become the normal classroom learning. “The number of letters ” is the official primary school algebra to open