Go straight, there are not so many twists and turns.
But now schools and teachers pay more attention to children's all-round development Nowadays, children's math problems often combine all kinds of common sense and logic, which makes children and parents puzzled.
Among them, the problem of a primary school student "10-8=2" has aroused heated discussion among parents and netizens.
According to this parent, his children are in the first grade of primary school, and they usually get full marks in mathematics. Originally, I could get full marks in math this time, but I was deducted by the teacher. The child is puzzled by this topic. What can be wrong?
The title probably means something like this:
Car limit 10 people, 7 children. How many seats are left in this car?
One thing to note about this problem is the load limit. The child is very clever. Considering this problem, the driver is included, so the answer is 10-8=2.
After seeing the question, the parent felt that the child's answer was no problem. Not convinced, he asked the teacher, "Why do you judge my child wrong?"
The teacher replied: None of the children in the class did it right.
Although the child considered the problem of load limit, the answer was correct, but the formula was wrong. It should be all empty seats MINUS the number of children, and the formula should be 9-7=2. For this answer, parents felt a little slap in the face, but after posting it online, the teacher's explanation caused controversy among netizens.
It can be roughly divided into the following two types:
Some netizens think that the topic is not rigorous, not like a math problem, but more like a brain teaser. Where do first-grade children know this common sense? Secondly, the hidden trap is not something that children can think of. Another part of netizens think this question is very good, which can test children's understanding of concepts and control of logical thinking, which is good for children's flexible thinking. And mathematics itself is a subject applied to life.
In my opinion, modern mathematics education really pays more attention to the development of mathematical thinking, so the starting point for teachers to consider logic and application in life when setting questions is right; But the topic itself is not rigorous and will cause controversy.
In fact, there are not a few such examples. Parents are also reminded from the side that modern mathematics attaches importance to the application of thinking and real life.
Marx once said: "A subject can only be truly perfect if it successfully uses mathematics."
Therefore, if parents do not pay attention to the development of children's mathematical thinking, children's grades will easily fall behind.
As parents, how to cultivate children's mathematical thinking?
1, 2-4 years old: cultivate children's sense of numbers.
Simply put, number sense is the ability of children to apply numbers to real life. For example, a child can count several items when he is about 2 years old, which is a good sense of counting. When we teach children to count, we should try our best to let them count at objects to prevent them from remembering.
But it is not recommended to write numbers directly on items, as shown in the figure below. Children will think that the name of this item is a number. Therefore, every time the child finishes counting, he will mess up the items and let the child count them again.
Second, 4-6 years old: lay a good foundation for mathematical thinking.
From the perspective of children's development, 4-6 years old is a critical period for children's thinking development, and it is also a stage for children to further contact with mathematics. At this time, let the children understand mathematics instead of rote learning.
Try to combine real life or games when giving children math problems. For example, you have six pieces, and mom took two pieces. How many pieces do you have left? At the same time, we should also know how to change the topic.
3, 6-8 years old: further exercise mathematical thinking.
After entering the stage of young convergence, children's thinking development has made great progress. At this time, children can understand some simple mathematical concepts, such as graphics, space, time, set and so on.