Should children learn mental arithmetic well?

I think this man's point of view is very reasonable. For reference only.

Learning can be learned! But it depends on the child's acceptance. If the food is very miscellaneous, it is better to stop early!

Whenever a primary school student signs up for the first grade, there will always be parents who ask, "The child learned abacus mental arithmetic in kindergarten, and will be in the first grade soon, but abacus mental arithmetic has not been finished yet. Is it necessary for children to continue their studies? " There are also many parents of kindergarten children who ask if it is necessary for children aged four or five to learn abacus mental arithmetic.

In recent years, almost all kindergartens are scrambling to let their children learn abacus. I think the main reason is economic interests. Many children have not even established the concept of addition and subtraction, and they still need to learn "to add three, to return five, to have two, to have one". Sometimes, children can accurately calculate the addition and subtraction of three digits, but there are also jokes of "1+2= 12". Since the new curriculum reform, mathematics advocates the diversification of algorithms and encourages students to calculate independently. By comparing the characteristics of various algorithms, teachers guide students to choose the method that suits them. Even though students' methods are immature, they have experienced a process of inquiry in their thinking, and their methods are more in line with children's cognitive level. Students who have studied abacus mental arithmetic only pay attention to their own algorithms, can't go through the inquiry process, and often can't accept algorithms different from their own methods, let alone cooperate. In the first and second grades, students who have studied abacus mental arithmetic have obvious advantages in calculation speed, but they have no absolute advantage in accuracy. With the increase of grade, the advantage of speed gradually fades. Moreover, students' calculation mistakes make teachers unable to find the cause of the mistakes and help them correct them. If you carefully observe these children, you will find that when they are calculating, they often get the results after their hands keep snapping their fingers. However, it is difficult to form a sense of numbers, and it is also difficult to reasonably explain the calculation results. In the "Mathematics Curriculum Standards", it is required: "Everyone should learn valuable mathematics; Everyone can get the necessary math. " If the learning effect of abacus mental arithmetic only stays at the speed of calculation, it is of no value to children.

Some experts believe that abacus mental arithmetic is a school of mathematical calculation teaching, which still exists today and must have its reasonable place. After children learn abacus mental arithmetic, the calculation speed will really accelerate. Learning abacus mental arithmetic will have a certain effect on exercising fingers and brain, which is good for children's self-confidence in quick calculation. However, domestic researchers are conducting related research on the role of abacus mental arithmetic in children's intellectual development; To what extent abacus mental arithmetic can improve children's mathematical wisdom and at which age it is more appropriate to start learning remains to be studied.