Introduction:

Oral calculation-fast heart is the only way to perform simple operations without any physical objects, and you don't need an abacus or fingers. Oral calculation-quick mental calculation-a teaching mode that is really synchronized with primary school mathematics textbooks.

The arrangement and difficulty of oral arithmetic-the textbook of quick mental arithmetic is closely related to the syllabus of primary school mathematics, which accords with the quick calculation of junior high school algebra and is simpler than the textbook of primary school. Simplify written calculation and strengthen oral calculation. It is simple, easy to learn and interesting. After a short period of training, primary school students can write answers directly by adding, subtracting, multiplying and dividing, not vertically.

Oral arithmetic-the peculiar effect of quick mental arithmetic. I have learned the multiplication, division and addition of any number of digits above grade three, the multiplication and division of numbers in grade two, and the multiplication and division of numbers in grade one.

In kindergarten, children in large classes can learn multi-digit addition and subtraction, which is tailor-made for preschool children, so that they can calculate the primary school mouth in advance. It is helpful for children to learn mental arithmetic quickly in kindergarten to go to primary school in the future. Students no longer use draft paper to do their homework, but write answers directly.

Oral arithmetic and quick mental arithmetic are different from abacus mental arithmetic and palm mental arithmetic. The fast mental arithmetic invented by Niu Hongwei, a teacher in Xi 'an, mainly trains children to do addition, subtraction, multiplication and division quickly through certain rules in textbooks. "Quick mental arithmetic" is helpful to improve the order, logic and sensitivity of children's thinking and behavior, and train children's eyes, hands and brain to react synchronously and quickly.

The calculation method is consistent with primary and secondary school mathematics, so it is very popular with children and parents. Oral arithmetic and quick mental arithmetic: a teaching mode that is truly synchronized with primary school mathematics textbooks;

1, conference algorithm

Written calculation training, China's current education system is exam-oriented education, and the standard for testing students is the test report card. Then the students' main tasks are to take exams, answer questions and write with a pen. Writing arithmetic training is the main line of teaching. Consistent with the mathematical calculation method in primary schools, it does not use any physical calculation, and can be used freely horizontally and vertically, even adding and subtracting. Computing with a pen is the golden key to opening an intelligent express train.

2. Reasonable

Try to find out. Children should not only learn arithmetic, but also know it. Let children understand the calculation principle and break through the calculation of numbers in spelling. The child completes the calculation on the basis of understanding.

Step 3 practice speed

Speed training, it's not enough just to use pen to calculate problems. There is definitely a time limit for primary school oral arithmetic. It takes time to tell whether it is up to standard, that is, it is not enough to calculate problems, mainly to speed up.

Step 4 enlighten wisdom

Intellectual gymnastics, not simply learning and calculating, focuses on cultivating children's mathematical thinking ability, fully stimulating the potential of the left and right brains and developing the whole brain. Preschool children can deeply understand the essence of mathematics (including) and the meaning of numbers (cardinal number, ordinal number, including) after rapid mental arithmetic training.

The operation mechanism of numbers (addition and subtraction of the same number of digits) and the way of mathematical logic operation enable children to master the decomposition method of complex information and develop divergent thinking and reverse thinking. The child's brain works fast.