一年级是小学数学的入门阶段,对于培养学生的数学思维具有重要的作用。本文选取北师大版一年级数学中的“两位数加减一位数”这一教学内容进行教学设计,通过创设教学情境,让学生在课堂上对加减法的实用性和重要性有更深刻的体会,同时运用引导学生自主探究的教学方式,让学生在教学过程中切实收获知识,从而促使学生熟练运用多种计算方法解决实际问题。一、学情分析两位数加减一位数是北师大版一年级下册数学的教学内容。 The first grade is an introductory stage of elementary mathematics, which plays an important role in cultivating students’ mathematical thinking. In this paper, we choose the teaching content of “two digits plus or minus one digit” in the first grade mathematics of Beijing Normal University edition to make the teaching design. Through the creation of the teaching situation, the students can make the additions and subtractions in the class practical and important Sex has a deeper understanding. At the same time, students should be guided to explore their own teaching methods to enable students to gain practical knowledge in the teaching process so as to encourage students to skillfully use various calculation methods to solve practical problems. First, the academic situation analysis Double digits plus or minus a single digit is the Beijing Normal University version of the first grade volume mathematics teaching content.