How to look at the clock, how to look at the clock, how to look at the clock

I recently discovered a WeChat mini-program called "Early Childhood Learning Assistant", which has some features suitable for children (3-5 years old) to initiate cognitive learning. For example, recognizing numbers, recognizing letters, simple arithmetic, learning to read the clock, etc., may be helpful to your children.

Looking at clocks is divided into clocks and watches, taking clocks as an example, there are 5 steps, the following are the detailed operations of looking at clocks:

Steps.

Learn about the clock. The clock has 12 numbers on it, representing 12 hours.

Distinguish by pointers.

Each number represents an hour, but also a minute, and is distinguished by a hand.

The difference between pointers.

The hands on the clock are slightly shorter than the hour hand and slightly longer are the minute hand. The hour hand points to the number of points, and the minute hand points to the number of points.

The interval between the two numbers.

Between the two numbers there are five cells, each representing one minute, and between the two numbers is five minutes.

The time it takes for the minute hand to make one revolution.

One rotation of the minute hand is 60 minutes, and 60 minutes is equal to 1 hour. end

1. First of all, let's introduce the overall situation of the clock, there are 3 clocks, namely the second hand, the minute hand, and the hour hand. There are a total of 12 numbers on the clock, which are 1-12.

2. Some clocks will use other symbols to replace the numerals, and some clocks will have no second hand, only two other hands.

3. If you go faster, the needle that is generally the longest is the second hand, and the second hand will go around once, and the minute will go one square, which is one minute. When the minute hand goes around, the hour hand will move one stop, just one hour.

4. The difference between each grid is 5, so the conversion between 3 needles is 60, and the conversion between seconds, minutes, and hours is converted to 60.

5. When looking at what time the clock is, the second hand can be ignored, mainly looking at the minute hand and the hour hand. In the figure below, the clock is 10 o'clock at 10 o'clock, and the minute is 10 minutes at 2. One grid is 5 minutes, two squares are 10 minutes, the minute hand stops at **, and the number is multiplied by 5.

6. The hour hand will move along with the movement of the minute hand, when the minute stops at the middle 6, it has been 30 minutes, half an hour, and the hour hand will correspondingly go about half a square in the direction of the next number.

7. When looking at the hour hand, as long as the hour hand has not passed that number, it is counted as the previous number. For example, in the figure below, the hour hand stops between 10 and 11, even if it is 10 o'clock.

1. Recognize the clock when the Sakura manuscript is between the drafts: First of all, make it clear that the short one on the clock dial is the hour hand, the long one is the minute hand, and the longest and thinner one is the second hand.

1) The hour hand refers to the number of points, if it refers to the two words, it is said to be the smaller one, as shown in the figure below, between 10 and 11 is 10 o'clock, between 12 and 1 is 12 o'clock (special).

2) The number of the minute hand is multiplied by 5 is the minute, such as 1 is 5 minutes, 2 is 10 minutes, 3 is 15 minutes, and the small grid between the two numbers is one minute, as shown in the figure is 9 minutes.

2. As shown in the figure below, the time indicated by Zhong Song's rough watch is 10:09:36.

The steps for the clock to see the time are as follows:

1. Introduce three pointers. The longest is the second hand, the second longest is the minute hand, and the shortest is the hour hand. (as shown in the image below).

2. Each pointer walks in a circle to represent the time. There are 12 numerals on the clock, the second hand or sail goes for 60 seconds, the minute hand goes for 1 hour, and the hour hand goes for 12 hours. (as shown in the image below).

3. Take 10:10 as an example. If the hour hand points to 10, the Divine Oak means 10 o'clock, and the minute hand points to 2, which means 10 minutes. (as shown in the image below).

The history of the clock:

The manufacture of clocks and watches in China can be traced back to the Han Dynasty. The astronomical clock made by Zhang Heng in the Han Dynasty combined with astronomical observations can be said to be the originator of the world's clocks. In the Tang Dynasty, China's watchmaking technology had a new development.

17 At the beginning of the 19th century, the clock manufacturing technology in China was more complete, and workshops specializing in clock manufacturing appeared. At that time, watchmakers were able to create a variety of styles of self-striking clocks and pendulum clocks. The dial has developed from the original one and two hands to three and four hands, as well as the day, hour, minute and second.