五年级学生在语文课上并没有学过“循环”这个词,在上《循环小数》这节内容时我是这样开始新课的。 同学们,今天这节数学课,我们先学语文知识(学生很惊奇,期待我说下去),请你们拿出字典,查“循”字。(不知我葫芦里卖什么药,好奇心驱使每个学生查到“循”字。)看“循环”是什么意思?(学生答:循环是周而复始的意思。也许是角色“反串”的缘故,学生兴致极高。) The fifth grader did not learn the word “loop” in the language class, so I started the new class this way when I circled the decimal part. Students, today's math class, we first learn Chinese (students are very surprised, I am looking forward to continue), please come up with a dictionary, check the “word”. (I do not know what drugs to sell my gourd, curiosity drives each student to find “the word.”) See “cycle” What does it mean? (Student A: cycle is the meaning of the cycle.) Perhaps the role of “anti-string” Students are very interested.)