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Knowing clocks and watches is a course for several grades in primary school.
Knowing clocks and watches is a math class in the first grade of primary school.

1, know the clock to distinguish the hour hand, minute hand and second hand. The fattest and shortest is the hour hand, the second hand is always there, and the rest is called the minute hand.

2, clear the approximate reading of time, a certain hour, a certain minute, a certain second. Clear digital distribution, up 12, down 6, right 3, left 9.

When the minute hand points to the number 12, it is the hour. What number does the hour hand point to at the moment? What time is it now?

4. The half point is all the cases where the minute hand points to the number 6, depending on the position of the hour hand between the two numbers.

When the smaller number is taken, it can be said to be half past five.

6. For example, the minute hand points to 6, which is exactly half an hour. Take 1 between 1 and 2 and read 30 or 1: 30.