论文部分内容阅读
有些思考性较强的题目,需要在假设的基础上对多种可能进行充分的讨论,再通过验证方能得出正确的结果。试看下题通过假设、讨论、验证的解答过程。题目:某学校在操场植树,其中有男教师,也有女教师,并有1/3的教师各带一名班干部参加。男教师每人种13棵树,女教师每人种10棵树。班干部每人种6棵树,他们共种了216棵树。那么其中女教师有多少人?(1)假设:假设男教师有A人,女教师有B人。根据题意可知,学生干部数是(A+B)”1/3,种
Some of the more thought-provoking topics require a full discussion of multiple possibilities on the basis of assumptions before validating the results. Take a look at the next question by assuming, discussing, validating the answer process. Title: Some schools planted trees on playgrounds, including male teachers and female teachers, and one third of teachers took one class cadre each. Male teachers each species 13 trees, female teachers per person 10 trees. Class cadres planted 6 trees each, and they planted 216 trees together. So how many of them are female teachers? (1) Assumptions: Suppose male teachers have A people, female teachers have B people. According to the inscription, the number of student cadres is (A + B) "1/3, kind