1. Draw the emblem of the 2023 Hangzhou Asian Games in the middle of the drawing paper.
2. Write the title of the handwritten newspaper with a red marker above the emblem: 2023 Hangzhou Asian Games.
3. Draw a stick figure with the theme of running in the lower left corner of the drawing paper.
4. Then draw a stick figure with swimming as the theme in the lower right corner of the drawing paper, all of which are regular sports.
Draw a blue rectangular frame directly below the emblem and write a brief introduction of the 2023 Hangzhou Asian Games in it.
6. Draw an orange cloud on the left side of the emblem, and write some sports of the 2023 Hangzhou Asian Games in it.
7. Finally, draw a green box on the right side of the emblem and write the significance of the 2023 Hangzhou Asian Games in it.
Mathematical short stories
1. Archimedes, an ancient Greek scholar, died at the hands of Roman enemy soldiers who attacked Sicily. ), people carved the figure of the ball in the cylinder on his tombstone to commemorate his discovery that the volume and surface area of the ball are two-thirds of that of the circumscribed cylinder.
Archimedes was born in Syracuse, Sicily, at the southern tip of the Italian peninsula in 287 BC. Father is a mathematician and astronomer. Archimedes had a good family upbringing since childhood. 1 1 years old, was sent to study in Alexandria, the cultural center of Greece.
In this famous city known as the "Capital of Wisdom", Archimedes Job collected books and learned a lot of knowledge, and became a protege of Euclid students erato Sese and Cannon, studying geometric elements.
Ju Lushi, born in 624 BC, was the first famous mathematician in ancient Greece. He used to be a shrewd businessman. After he accumulated considerable wealth by selling olive oil, Cyrus devoted himself to scientific research and travel.
He is diligent and studious, at the same time, he is not superstitious about the ancients, and he is brave in exploration, creation and positive thinking. His hometown is not too far from Egypt, so he often travels to Egypt. There, Ju Lushi learned about the rich mathematical knowledge accumulated by ancient Egyptians for thousands of years. When he traveled in Egypt, he calculated the height of the pyramids in a clever way, which made the ancient Egyptian king Amerasis admire him very much.
4. Zu Chongzhi's outstanding achievement in mathematics is about the calculation of pi. Before the Qin and Han Dynasties, people used "the diameter of three weeks a week" as pi, which was called "ancient rate". Later, it was found that the error of ancient rate was too big, and pi should be "the diameter of a circle is more than that of Wednesday", but there are different opinions on how much is left.
Until the Three Kingdoms period, Liu Hui put forward a scientific method to calculate pi-"secant method", which approximated the circumference of a circle with the circumference of a regular polygon inscribed in the circle. Liu Hui calculated the circle inscribed with 96 polygons and got π=3. 14, and pointed out that the more sides inscribed with regular polygons, the more accurate the π value obtained.
On the basis of predecessors' achievements, Zu Chongzhi worked hard and calculated repeatedly, and found that π was between 3. 14 15926 and 3. 14 15927. The approximate value in the form of π fraction is obtained as the reduction rate and density rate, where the six decimal places are 3. 14 1929, which is the closest fraction to π value in 1000.
How did Zu Chongzhi arrive at this result is unknown. If he tries to find it according to Liu Hui's secant method, it will take a lot of time and energy to calculate the polygon inscribed in this circle 16384. This shows that his perseverance and intelligence in academic research are admirable.
Foreign mathematicians got the same result from Zu Chongzhi's calculation, which has been more than 1000 years. In order to commemorate Zu Chongzhi's outstanding contribution, some mathematicians abroad suggested that π = be called "ancestral rate".