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20以内的进位加法和退位减法是学生学习整、小数四则的基础,也是一年级数学教学的重点和难点。为了突破这个难点,我们进行了一次教学实验,探索不同教材对学生学习的影响。一、实验方法 1、在三个小学,各选择一个条件相当的一年级班(下称A、B、C班),分别使用三种教材。即A班——部编六年制小学数学课本,B班——课程教材研究所编写的小学数学实验课本,C班——马芯兰的数学实验试用教材。
20 addition and subtraction of carry within the addition and subtraction is to learn the whole student, the basis of four decimals, mathematics teaching is also the first year of the focus and difficulty. In order to break through this difficulty, we conducted a teaching experiment to explore the impact of different textbooks on student learning. First, the experimental method 1, in the three primary schools, choose a condition of the equivalent of the first grade classes (hereinafter A, B, C classes), respectively, the use of three textbooks. A class - the Department of six-year primary school mathematics textbooks, Class B - Curriculum Materials Institute primary school mathematics experimental textbooks, C class - Mathian experimental math teaching materials.