1, understand the basic characteristics of clocks and watches, including the basic composition of shapes and hands, numbers and scales, which is the hour hand and which is the minute hand, and what are the scales and numbers. These are the basic indicators of reading clock time.
2. The information of the clock is mainly the hourly and minute readings, sometimes accurate to seconds or even smaller units.
3. Hours, minutes and seconds are the basic units of time, and they can also be transformed into each other. Minute hand rotation 1 hour, second hand rotation 1 minute.
4. In order to record the time information of the clock conveniently, there are two basic recording methods, the ordinary timing method and the digital timing method.
5, time appears very frequently in life, pay attention to how our life can not be separated from time.