Unit 5 how to draw a handwritten newspaper in the second volume of the third grade mathematics

Unit 5, Volume 2, Grade 3 The drawing method of mathematical handwritten newspaper is as follows:

Material preparation: paper, pen, etc.

1, first draw the header text, then draw two books on the left and on the border of a teddy bear, and decorate them in the lower right corner of the border.

2. Then draw a border with other shapes on the right, add pencils and flowers with digital shapes as decorations, and add a small flag on it.

3. Next, color the words and color the lawn green.

4. Then paint the border with purple, blue and orange, and add other decorative colors.

5. Finally, draw a text column on the border and simply write a handwritten newspaper.

Introduction to mathematics:

First, define.

Aristotle defined mathematics as "quantitative science", which lasted until18th century. /kloc-since the 0/9th century, mathematical research has become more and more rigorous, and it has begun to involve abstract topics such as group theory and projection geometry that have no clear relationship with quantity and measurement. Mathematicians and philosophers have begun to put forward various new definitions.

Some of these definitions emphasize the deductive nature of a lot of mathematics, some emphasize its abstraction, and some emphasize some themes in mathematics. Even among professionals, the definition of mathematics has not been reached. Whether mathematics is an art or a science has not even been decided. Many professional mathematicians are not interested in the definition of mathematics or think it is undefined.

Second, the structure.

Many mathematical objects, such as numbers, functions and geometry, reflect the internal structure of continuous operations or the relationships defined in them. Mathematics studies the properties of these structures, and similar things often happen in different structures, which makes it possible to describe the state of a class of structures by further abstraction and then axiomatic description.

Therefore, we can learn abstract systems such as groups, rings and domains. These studies can form the field of abstract algebra. Because abstract algebra has great universality, it can often be applied to some seemingly unrelated problems. For example, some problems of drawing rulers and rulers in ancient times were finally solved by Galois theory, which involved the theory of presence and group theory.