1. Definition and properties of a circle: Introduce the definition of a circle, its basic properties, such as center, radius and diameter, and some important properties, such as perimeter and area.
2. Application of circle: Introduce the application of circle in life, such as bicycle wheels, clocks and watches, round tableware, etc. And the application of circle in mathematics, such as the calculation of pi and the area of circle.
3. History of the circle: introduce the historical origin of the circle, such as the study of the circle by ancient mathematicians and the calculation of pi.
4. The beauty of circle: introduce the aesthetic value of circle, such as the application of circle in architectural design and artistic works.
5. Exploration of circles: Encourage readers to explore the mysteries of circles, such as making their own compasses and trying to draw circles of different sizes.
When making handwritten newspapers, we can vividly show the definition, nature, application, history and beauty of the circle through illustrations. At the same time, some interesting elements can be added to the handwritten newspaper, such as cartoon images and interesting topics, to make the handwritten newspaper more vivid and interesting.
The Application of Circle in Life
1, architectural design
In architectural design, circle can be widely used in the design and construction of buildings, such as circular doors and windows, circular columns and domes, circular squares and flower beds, which can increase the aesthetic feeling and artistic sense of buildings.
Step 2 transport
In the field of transportation, circles are also widely used. For example, traffic lights and traffic signs are usually circular, because circular can provide maximum visibility and recognition, so that drivers and pedestrians can quickly understand and abide by traffic rules; Circular tires are also an important part of modern vehicles, which can provide good handling and stability and ensure the safety of vehicles during driving.
Function and significance of circular objects
1, a round object can represent the meaning of perfection, eternity and reunion.
2. Circular objects can represent the concepts of infinity, space and time in science.
3. Circular objects can represent the concepts of universe, divinity and mystery in culture.
4. Circular objects can represent the concepts of flow, vitality and harmony in art. ..
5. Round objects can increase the aesthetic feeling and artistic sense of buildings.
6. Circular objects can improve the visibility and recognition in transportation and ensure the safety of vehicles during driving.