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在党的教育方针指导下,职工业余学校的课堂教学必须结合生产,联系实际,并且已经有不少教师取得了一定成绩和经验。但在数学课教学方面,特別是在初中代数课的教学中,能不能结合生产,怎样结合生产,还存在着不少问題,为此我们学校数学教师在本学期大胆地作了实验。如在讲用一元一次方程解行程问题中,曾作了一次如下內容的实验课: 在第一课时,首先建立預备知识。1.提问圆周长的计算公式:(1)已知直径D,求圆周长C=πD;(2)己知半径R,求圆周长C=2πR。2.用直观教具演示使学员理解皮带传动及其周长×转数=距离的关系:(1)如图1所示一对相连结的皮带轮,先转动的叫主
Under the guidance of the party’s education policy, the classroom teaching of employees’ spare time schools must combine production with actual practice, and many teachers have achieved certain achievements and experiences. However, in mathematics teaching, especially in the teaching of junior high school algebra, whether there is a combination of production and how to combine production, there are still many problems. For this reason, our school mathematics teacher has experimented boldly in this semester. For example, in the course of solving one-dimensional equations and trips, an experiment course with the following contents was given: In the first lesson, the preliminary knowledge was first established. 1. Ask the calculation formula for the circle length: (1) Know the diameter D, find the circle length C = πD; (2) Know the radius R, find the circle length C = 2πR. 2. Using the visual aids demonstration to enable students to understand the relationship between the belt drive and its perimeter × revolutions = distance: (1) a pair of connected pulleys as shown in Figure 1, the first to turn the caller