论文部分内容阅读
【教学目标】1.知识与技能。通过探索有理数加法法则,让学生理解有理数的加法法则。2.过程与方法。通过观察、比较、归纳等得出有理数加法法则。3.情感、态度与价值观。让学生初步体会“分类”的数学思想。认识到通过师生合作交流,学生主动参与小组讨论与探索,获得数学知识,从而提高学生学习数学的积极性。【教学重点】有理数加法法则及应用。【教学难点】异号两数相加时和的符号确定。【教学过程】
【Teaching Objectives】 1. Knowledge and skills. By exploring the law of rational addition, let students understand the law of addition of rational numbers. Process and method. By observing, comparing, inducing and so on rational number addition law. 3. Emotions, attitudes and values. Allow students to first understand “classification ” mathematical thinking. Realizing that through the cooperation and exchange between teachers and students, students take the initiative to participate in group discussion and exploration, gaining knowledge of mathematics and improving the enthusiasm of students in learning mathematics. 【Teaching】 rational number addition law and application. Difficult teaching】 【signs and symbols to determine the sum of two. 【Teaching process】