1, 1 =(60) points.
2. There are (12) numbers on the clock face. Divide the clock face into (12) equal grids, and each grid is divided into (5) equal grids, and there are (60) grids on the clock face.
There are (2) hands on the clock face. The shorter needle is called (hour) needle, and the longer needle is called (minute) needle. When the minute hand walks at 1, it is (1) minutes, when the big hand walks at 1, it is (5 minutes), and when the hour hand walks at 1, it is (1). Minute hand from 12 to 6, go (30 points); The clockwise clock went from 12 to 6, and walked for (6) hours; Clockwise hand made a circle from 12, then returned to 12 and left (12).
4. (30) minutes can also be said to be half an hour, and (15) minutes can also be said to be a quarter of an hour. For example, 8: 30 is 8: 30, and 9: 00 15 is 9: 15.
At 5 o'clock (3 o'clock or 9 o'clock), the hour hand and the minute hand on the clock face are at right angles.
Time unit relationship
First, the year
The time for the earth to go around the sun is called a year.
Second, the average year.
The average year of 1 is 365 days.
Third, leap year.
Usually, the Gregorian calendar year is a multiple of 4, but the Gregorian calendar year is an integer and must be a multiple of 400 to be considered as a leap year.
Fourth quarter
There are four quarters in a year, January, February and March are the first quarter, April, May and June are the second quarter, July, August and September are the third quarter and October, November and December are the fourth quarter.
May, may
There are 12 months, 1 month, March, May, July, August, 10 month,1February 3 1 day, February, April, June, September,/kloc.