1. There are three hands on the clock face. They are (hour hand), (minute hand) and (second hand). The fastest is the second hand, and the slowest is the hour hand. The hour hand is the shortest and the second hand is the longest.

2. There are (12) numbers, (12) large squares and (60) small squares on the clock face; There are (1) large cells between every two numbers, that is, (5) small cells.

3, clockwise 1 grid is (1) hours; It takes (5) minutes to walk 1 square and (1) minutes to walk 1 square. Second hand 1 is (5) seconds, and second hand 1 is (1) seconds.

4. When the hour hand goes 1, the minute hand just goes (1) laps, and the minute hand goes 1 laps for (60) minutes, that is, (1) hours. Clockwise 1 turn, minute hand (12 turn).

5. The minute hand goes 1, the second hand just goes (1) laps, and the second hand goes 1 laps for (60) seconds, which is (1) minutes.

6. When the hour hand turns from one number to the next, it is (1 hour). The minute hand moves from one number to the next (5 minutes). The second hand turns from one number to the next (5 seconds).

7. formula. 1 hour = 60min 1 minute = 60seconds = 1 hour = 60min = 1 hour, 30min = half an hour = 30min.

8. Formula. The advance rate between every two adjacent time units is 60.

The role of mind mapping:

1, help memory. Mind mapping can integrate a large amount of information into a graph, which helps people to better remember and understand information. By dividing information into different branches and sub-branches, complex information can become simpler and clearer.

2. Better communication. Mind mapping can help people express their thoughts and opinions better. By graphing information, it can be more intuitive and easy to understand, thus improving the communication effect.

3. The function of divergent thinking in mind map is to help us to diverge and organize our thinking, and we can keep flexible editing and organization forms at any time. Through mind mapping, we can visualize our thoughts and ideas, and we can modify and organize them at any time.

4. By stimulating people's wealth association, mind map can show philosophical thinking modes without obstacles, including continuity, profundity, criticism, divergence, association, analogy, imagery, inspiration and dialectics.

5. Planning and effective promotion are important functions of mind mapping. Mind mapping enables us to make scientific and effective plans, plan and arrange according to the brain thinking mode, and at the same time, we can clearly analyze and think about problems and finally make decisions.