In the first-year mathematics "Time Length", students need to learn and understand that 1 is a big grid for the hour hand, 1 is a small grid for the minute hand, and 5 is a big grid for the minute hand. Looking at the time, they will know the number of 5 points and 5 points, and understand the relationship between 1 and 60 points.

For example:

(1) How many squares are there on a clock face? (12 numbers divide the clock face into 12 squares)

(2) What does the minute hand mean? How much is it to walk one Little Square in a minute? (The minute hand is used to indicate how many points. The minute hand is 1, which means 1. )

(3) How many squares are there in the number 12 to 1? (Courseware demonstration: there are 5 squares between 12 and 1)

That's (5) minutes, so the minute hand takes a big space and it's 5 points.

(4) What is the number from12 to 2? (Courseware demonstration: there are 10 cells between 12 and 2)

That is (10) minutes.

(5) How about from 12 to 3? (Courseware demonstration: there are 15 cells between 12 and 3)

That is (15) minutes.