1, draw a figure with center symmetry. You can also start from the definition and rotate a graph 180 around a certain point. If it can coincide with another figure, then these two figures are called point symmetry or center symmetry.

2. According to the definition of centrosymmetric figure, we can know that before drawing centrosymmetric figure, we can click a point, start drawing from that point, rotate the paper by 180 after drawing the figure, and then click the point to draw a figure similar to it, so that we can draw a centrosymmetric figure.

Summary: Generally speaking, in a plane, a graph rotates around a certain point 180. If the figures before and after rotation coincide with each other, then this figure is called a centrally symmetric figure. So if you want to draw a figure with a symmetrical center, you must first find the reference point, and then draw the figure.

Detail analysis of drawing central symmetric graphics

Central symmetry: on the plane, rotate a figure 180 around a point. If the rotated figure coincides with another figure, the shapes of these two figures are explained.

Regarding the Centralofsymmetrygraph of this point, this point is called its symmetric center, and the two points that overlap after rotating180 are called corresponding points.

Centrally symmetric figure: rotate the figure 180 around a point on a plane. If the rotated figure can coincide with the original figure, then this figure is called a central symmetric figure, and this point is called its symmetric center.

How to draw 1 with the stick figure of symmetrical figure? Draw the left part of the butterfly picture first.

2. Then draw the right part of the butterfly pattern.

3. Finally, color the butterfly pattern.

The first volume of grade three, practice homework, use the marker in your hand to design beautiful symmetrical patterns. "How to Draw Mathematics Curriculum Standards" points out: "Mathematics teaching should be closely linked with students' real life and create vivid and interesting situations from students' life experience and existing knowledge." Therefore, mathematics teaching must start with students' familiar life situations and interesting things, and introduce mathematics problems in life into the classroom. If the knowledge is above the students' existing knowledge, students will find it difficult to learn and get bored with mathematics. Draw a picture, cut it, and spell it. Everyone can simply draw a beautiful symmetrical axis graphic clip art with a brush, colored paper and scissors in their hands. In this process, children will combine play with learning, which will not only have a deeper perception of axisymmetric graphics, but also enhance their hands-on ability and creativity, and feel the joy of learning mathematics.