I have seen this topic many times and I am used to it. There is a difference of one hundred years, and there will be a difference of one hundred years after many years. The problem is that this meaning is expressed, but it doesn't match the facts!
The biology teacher can't explain it, and neither father nor son can. The biology teacher can only tell you that this father-son relationship does not exist on earth. You should pay attention to the difference of 100, which is the most important thing. Of course, this is not a problem that a biology teacher can solve. No, just ask the math teacher!
First, should this problem exist? I don't think it matters anyway. I can understand the meaning of the question, so should the children. Some people say that this kind of question should not be given, which will make children misunderstand. The difference between father and son 100 year. How old is your child to do such a problem? You must be over six years old. Can a child over six years old not know how old he is from his father? Can you not know how long people live?
It can't be serious. If you are serious, you can find fault with everything!
Second, what should parents do if they encounter such problems? I usually discuss with the mother of the child. We have a group of parents. After the discussion, we will discuss a concrete solution. Tomorrow, when the children arrive at school, they will hand over the questions to the teacher. Parents will know whether it is right or wrong the next day!
If parents can't find the right answer, please ask more authoritative parents, such as the parents of the parents' committee, who can ask the teacher instead of all parents. What's the matter with this question? Is there something wrong? Or what?
Don't question the teacher directly in the class. This is a big no-no. If the problem is really wrong, then change it. There is no need to cling to other people's braids. Everyone is wrong, right? Not to mention your child's teacher!
Third, is this a wrong question? There are quite a few such questions, and I don't think anyone has used their brains. For example, "Xiao Ming is 8 years old, his father is three times as old as Xiao Ming, his grandfather is more than six times as old as his father, and he is three years old." How old are his father and grandfather this year? " Xiaoming is 8 years old, his father is 24 years old, and his grandfather 147 years old. Just work out the problem, no matter how old his father gets married or how old his grandfather lives. It is not easy for us to see the problem.
Let's talk about such questions, for example, mom is five years old and grandma is eight years old. What's the difference between mom and grandma? It's better to change this question to Xiao Huang and Xiaobai, because none of the primary schools with this problem have graduated!
Conclusion: Doing problems is just like being a man. Not seeking truth, almost enough. I'm afraid you can't stand it and you'll be angry with yourself. What do you think of when you see this question? What's the problem? Who gave the question? This question is also for children? If you don't have a long brain, you will have the spirit to finish the problem in your own time and change to the next one!
Wonderful math problems are normal, and we have done them in school, so don't think about it, don't waste brain cells, it's very tiring, hurry over and look at the next problem, wasting time on mistakes is increasing mistakes!