Arrangement, the original meaning refers to queuing, placing or arranging in order, or standing in rows. In modern mathematics, there are special phrases such as permutation and combination.
The word interesting thinking is superficial, but it actually refers to special imagination, that is, informal methods use daily experience to show a very innovative way of thinking, so as to get inspiration or solve current problems. Interesting thinking is to further cultivate students' spatial imagination and drawing ability, as well as spatial thinking ability and spatial imagination.
Interesting thinking usually has two levels: one is experiencing interest, and the other is innovative thinking. Experiencing fun often uses imagination, which leads to the immersion of thinking, that is to say, they are required to get rid of the inertia of thinking and experience this sense of fun with new steps, while innovative thinking is to operate innovative thinking against the stereotype of thinking, think of logically correct results, and embody an innovative and informal thinking style.