1, we need to determine a theme. This topic can be your favorite animals, plants, or anything you are interested in. Then, we can design this pattern by means of axial symmetry or translation.

2. If you choose axis symmetry, you can draw a center line first, and then draw the shapes on both sides. For example, if we take a butterfly as the theme, we can draw the butterfly's body and then draw symmetrical wings. In this way, we can get a beautiful and balanced axisymmetric pattern.

If we choose translation, we can draw a shape and move it to a new position. For example, we can draw a continuous line and then translate it to form a sense of flow. This can create a dynamic and extended effect.

4. After the design is finished, we can print this pattern or show it on the blackboard. We can also use colored pens, pigments or colored chalk to enhance the effect of this pattern. If possible, we can also use models or real objects to show this pattern.

Related knowledge of symmetry axis

1, the definition of symmetry axis. The axis of symmetry is a straight line that connects two opposite points on an object. These two points are symmetrical about this straight line. The axis of symmetry can be horizontal, vertical or diagonal, as the case may be.

2. Application of symmetry axis. Symmetry axis is widely used in daily life, art and science. For example, people can draw symmetrical patterns, buildings and works of art according to the axis of symmetry; In mathematics and physics, symmetry axis is often used to describe and analyze the shape and motion law of objects.

3. Characteristic symmetry of the axis of symmetry: After the object is folded around the axis of symmetry, the shapes of the two sides can completely coincide. Directionality: The direction of the symmetry axis depends on the shape and direction of the object itself. For example, a horizontally placed rectangle with its symmetry axis perpendicular to the ground; A square placed vertically, whose symmetry axis is horizontal to the ground.

4. Judgment method of symmetry axis. To judge whether an object has a symmetry axis, it is necessary to observe the shape and characteristics of the object. Generally speaking, if both sides of an object have the same shape, then the object has an axis of symmetry. For example, a circle has countless symmetry axes, because no matter which direction it is folded, the shape of both sides of the circle is the same.