When we refer to the number 7, we are often surrounded by an ineffable mystery. From ancient times to the present, this simple but meaningful number has always played an important role in the fields of religious beliefs, myths and legends, or scientific research. It is a lucky symbol in Western culture and one of the representatives of harmony and balance in Eastern philosophy.

In-depth discussion will find that 7 has already gone beyond the definition of mathematics and has become a special way of existence that runs through all times and all over the world.

Speaking of one of the most popular games in children's educational tools, "Tangram" undoubtedly occupies a pivotal position. The jigsaw puzzle made up of seven geometric figures seems ordinary, but in fact it hides mystery-by operating these plates, children's spatial imagination and creativity can be greatly stimulated while patient and meticulous character development process can be exercised.

in addition, it is worth mentioning that in the learning process, every time a piece of work is completed, it will bring a sense of achievement and feedback to further deepen the understanding of aesthetic laws and cultivate the ability to form a virtuous circle effect.

Walking around the streets, it is not difficult to notice that the number 7 frequently appears in daily life: a week is divided into seven days from Monday to Sunday; the rainbow presents a colorful scene of red, orange, yellow, green, blue, blue and purple... All this shows that people give this value a good luck and a good wish. The feeling of expectation is beyond words.

the music world is also inseparable from this magical existence. under the twelve-tone rhythm system, the basic scale just corresponds to the ABCDEFG seven-letter order arrangement and combination. there are thousands of changes and interpretations. listening melody is full of appeal and intoxicating. In terms of optical principles, the white light will also show seven clear boundaries of red, orange, yellow, green, indigo and purple after being refracted and decomposed by the prism. The color band spectrum shows the infinite charm of nature.

Interestingly, psychologists have pointed out that the theoretical basis of the so-called "magic number" that most people usually limit the number of things in memory to about five and fluctuate up and down no more than two units, which is exactly in line with this phenomenon, thus revealing that the internal operation law characteristics of brain cognitive mechanism have certain universal applicable value and can be used for reference.

not only that, the clever use of number 7 in the formulation of modern marketing strategies can also help businesses achieve differentiated competitive advantages, maximize the target effect, get twice the result with half the effort, and achieve remarkable results. therefore, more and more well-known brands are beginning to pay attention to the potential business opportunities in this area, tap the potential, and have broad prospects. it is worth paying attention to and looking forward to more innovations and wonderful surprises in the future.

with the progress of the times and the rapid development of science and technology, I believe that the hidden secrets behind the number 7 will be revealed one after another and presented to the world. let's wait and see together to welcome more wonderful moments belonging to it!