1, multiplication formula nursery rhymes
A frog has a mouth, two eyes and four legs. Two frogs have two mouths, four eyes and eight legs. Three frogs have three mouths, six eyes and twelve legs. Four frogs with four mouths jumped into the water.
2, elementary arithmetic nursery rhymes
Look at the whole project and see if it can be simple; Take the formula from left to right, multiply first, divide then add and subtract; Parentheses are small, medium and large, with the number inside first and then outside; The key to horizontal calculation and vertical measurement is to check step by step.
3, a number divided by several children's songs
Look at the highest digit of dividend first. If the high position is not enough, the quotient is written in which position. If the quotient is not enough, 1 is written in which digit, and the remainder is less than the divisor. Only in this way can the operation be correct.
Advantages of formulas in mathematics;
Pupils are more emotional than rational in age, and their logical thinking ability is relatively poor, especially their spatial imagination. Therefore, for primary school students, mathematics is a boring and complicated subject. Therefore, self-made formulas play an important role in mathematics education, which can stimulate students' interest in learning mathematics and enable them to effectively remember mathematics knowledge.
For example, when learning a long cube, it is quite difficult for students to fold six faces into a cube. I made up a formula to solve this problem. I didn't see the field and climbed up step by step.
It is concluded that the self-made formula plays an important role in stimulating students' interest in learning primary school mathematics. Therefore, I often make up various formulas in teaching to fully stimulate students' interest in learning.