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作为一名小学数学教师,我一直都是《中小学数学》的忠实读者。在读了邱学华老师提出的在一年级教“20以内进位加法”时运用加法口诀,我在教学中通过实际应用确实非常好。熟记20句口诀,计算速度大大提高。在班中开火车练习口算时,如果学生一时算不出得数,我稍用前半句口诀提示,结果立马就出来了,学生尝到了用口诀计算的好处,再也不觉得进位加法算起来难了。这样教学要比以前要求学生死记硬背20以内进位加法表难度降低很多。一来只有20句口诀,学生背熟了就会朗朗上口,容易记牢。二来计算教学大多数内容都是技能训练,学生掌握技能
As a primary school mathematics teacher, I have always been a loyal reader of “Primary and Secondary Mathematics.” After reading the Qiu Xuehua teacher proposed in the first grade teaching “Addition within 20 plus ” Addition formula, I used in teaching through the practical application is indeed very good. Memorize 20 formulas, computing speed greatly improved. In the class to open the train practice mouth count, if the student can not calculate the number for a time, I use the first half sentence tips tips, the results immediately came out, the students tasted the benefits of using formulas, no longer think of carry addition is difficult It’s This teaching than before requires students to memorize less than 20 carry addition table difficult to reduce a lot. Only one sentence to 20 formulas, students will recite cooked, easy to remember jail. Second, to calculate the teaching most of the content is skill training, students master skills