数学知识与方法不必过于拘泥于教材教参,数学是生动的,思维是拨动的,教学是灵动的,师生是互动的,让我们的教学“动”起来,教与学的过程才是鲜活的,有效的.以下是笔者与一学生的课间交流,感慨颇深,遂以供飨耳.一、师生研探,共悟新知学生遇到一道习题,百思不得其解,来办公室探讨.例1一名工人要看管三台机床,在一小时内机床不需要工人照顾的概率对于第一台是0.9,第二台是0.8,第三台是0.85,求在一小时的过程中不 The knowledge and methods of mathematics need not be too rigid in teaching materials, mathematics are vivid, thinking is toggle, teaching is agile, teachers and students are interactive, let our teaching “impulse ”, teaching and learning process It is fresh and effective. The following is an exchange between the author and a student. He is deeply filled with deep feelings. Solution, come to the office to discuss. Example 1 A worker must look after three machine tools. The probability that the machine tool does not require worker care within one hour is 0.9 for the first, 0.8 for the second, and 0.85 for the third. Not during the hour