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Part X Formula Teaching-Understanding Time (2)
? According to the traditional pointer clock, knowing the time is the first volume of the second-grade mathematics textbook published by People's Education Press, and children often can't master this part well because of lack of life experience.

The main problem lies in the hour hand, and there are many mistakes. I summed up the formula "When is the clockwise time?" The minute hand is not difficult to master after learning the multiplication formula. The formula is "How many points are multiplied by five plus several?"

The biggest problem children encounter when reading an hour hand is that "recently" is easy to make mistakes. "Recently" means how close the hour hand is. For example, at 7: 55, the hour hand is very close to "8" and far from "7". At this time, children can easily pronounce it as 8: 55. Therefore, our formula is "When is the right time?" "In chronological order" means looking at numbers clockwise, from small to large, such as from "1" to "2" and from "2" to "3", not from large to small. "Over a few" emphasizes when it is a number, only when it is close to a certain number and "but" is still an instant.

The minute hand is relatively simple as long as the child is familiar with the multiplication formula. The method is "how many points are multiplied by five", that is, the number pointed by the minute hand is multiplied by "5", plus the number of squares.

Together, the formula is "when is a few in time, multiplied by five plus a few is a few points."