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在竞赛培训中,对习题的思维拓展是非常重要的,笔者在训练学生思维拓展方面特别注重这方面的培养.对于同一个问题,如果从不同的角度,不同的知识去理解它,会有不同的认识和观点.一题多解对拓展学生的思维边界,提升学生的思维能力对竞赛的学生尤为重要.在这里针对运动学的一道习题,给出了多种解法和大家交流.例题.设湖岸MN为一直线,有一小船自岸边的A点沿与湖岸成15°角方向匀速向湖中驶去,有一人自A点同
In the competition training, it is very important to expand the thinking of the exercises, and the author pays special attention to the cultivation of students’ thinking in this area.If the same problem can be understood from different perspectives and different knowledge, Of the understanding and point of view.A multi-point solution to expand students ’thinking boundary, improve students’ thinking ability is particularly important for the students in the competition here for a kinematics problem, given a variety of solutions and exchange. Lakeshore MN for a straight line, a small boat from the shore of the A point along the lake shore at a uniform angle of 15 ° direction to the lake, one from the same point A