"Repetition" is a Chinese word, pronounced as chóng fù, which means that the same thing appears again, and it is done as it was, said, done and repeated, which comes from "History of Han Arts and Literature".
Regular sorting refers to arranging a group of objects in a regular order according to the differences of some characteristics (such as length, height, size, quantity, weight, height, etc.). ) or according to a certain law (such as from long to short, from long to short, from long to short, from long to short, etc. Regular sorting activities can cultivate children's mathematical thinking, develop children's observation and comparison abilities, improve children's judgment and reasoning abilities, and lay a foundation for primary school mathematics learning.
Arrangement law
The Guide to Learning and Development for Children Aged 3-6 points out that children can observe and discover things arranged according to certain rules, understand the characteristics and rules of arrangement, and try to create new arrangement rules by themselves. The ranking of 3-4-year-old children is entirely based on the perception of quantitative differences, and generally only four objects can be ranked.
Children aged 4-5 can sort simple quantities in ascending or descending order, but the quantity generally does not exceed 6. 5-6-year-old children gradually understand the order relationship of quantities on the basis of logic, including reversibility, transitivity and relativity, and can begin to sort correctly. Sorting is no longer limited by the scope of perception, and some can learn sorting strategies.