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工作期间,我带了两次七年级数学,发现七年级上册第三章多项式加减不仅是上册的重点内容,而且是整个初中阶段数学学习的重点。通过与其他的比较,综合学生的表现,不难发现,更是初一数学学习的难点,而多项式加减中的“去括号”更是重中之重,难中之难。很多学生在去括号这儿,学的是一塌糊涂。怎么能让学生轻松地学透,成了我心中的难题。
During my work, I took the seventh grade mathematics and found that the addition and subtraction of the polynomial in Chapter Three of the seventh grade is not only the focus of the first volume, but also the focus of mathematics learning in the whole junior middle school. Through comparison with other students, it is not difficult to find out the performance of students. It is even more difficult for them to learn mathematics in the first day. The addition of “to parentheses” in polynomials is even more important and difficult. Many students go to the brackets here, learning is a mess. How to make students easily learned, has become a problem in my heart.