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《两位数加一位数(进位)》是上教版义务教育数学课本一年级第二学期第四章《100以内数的加减法》中《两位数加减一位数》的一个内容。本节课的教学内容是:掌握两位数加一位数进位加法的计算方法,理解两位数加一位数进位加法的算理,同时提倡算法多样化。教师在教学中不仅要达成这些知识目标,还要引导学生探究解决类似问题的方法和渗透一定的数学思想。一年级学生认知水平处于启蒙阶段,尚未形成完整的数学知识结构体系。由于学生所特有的年龄特点,学生有意注意力占
“Double-digit plus one-digit (carry)” is the teaching of compulsory education mathematics textbooks first grade second semester of Chapter IV “addition and subtraction within the number of 100” in the “two-digit plus or minus one digit” one content. The teaching contents of this lesson are: master the calculation method of two-digit plus one-digit carry-add, understand the arithmetic of two-digit plus one-digit carry-add, meanwhile, promote the diversification of the algorithm. Teachers in teaching not only to achieve these knowledge goals, but also guide students to explore ways to solve similar problems and infiltrate certain mathematical ideas. The first-year students’ cognitive level is in the enlightenment stage, and a complete mathematical knowledge structure system has not been formed yet. Due to the age-specific characteristics of students, students are interested in paying attention