"Designing with Axial Symmetry" Axisymmetric PPT Download in Life

Description

"Designing with Axial Symmetry" Axisymmetric PPT Download in Life

Part One: Teaching Objectives

1. Able to create axially symmetrical figures of simple plane figures as required.

2. Appreciate axial symmetry graphics in real life, be able to use axial symmetry to design some patterns, and experience the wide application and rich cultural value of axial symmetry in real life.

Using axial symmetry to design PPT, part 2: introduction of new lesson

Scenario introduction

Are the following figures axially symmetrical? Try to draw their axis of symmetry.

Using axial symmetry to design PPT, part three: exploration of new knowledge

Paper-cutting is often seen in life. Did you know that it is designed using the axial symmetry of graphics?

Design patterns using axial symmetry

Question 1: Try to name the basic shapes that make up the following shapes.

Method summary

Generally speaking, the three types of graphic transformations: translation, rotation, and axial symmetry can be distinguished from the definitions. Distinguishing several basic concepts of graphics transformation is the key to solving problems.

Question 2: Analyze which of the following figures can be obtained through axial symmetry, and what is the formation process?

Question 3: Can you use these patterns to design beautiful patterns using axial symmetry?

Axisymmetric transformation:

As above, obtaining an axially symmetrical figure from a plane figure is called axially symmetrical transformation.

Practice: Paper-cutting is a Chinese folk art. There are many ways to cut paper. The picture below is an illustration of one method of paper-cutting (first fold the paper twice, then cut off the lower right corner, and then unfold it to get the pattern). Among the following four patterns, the above methods cannot be used.

The method cuts out ()

According to the meaning of the question, the pattern folded and cut out by this method should be an axially symmetrical figure. Among the four options, only C is not an axially symmetrical figure, so C cannot be cut out.

Using axial symmetry to design PPT, part 4: Classroom quiz

1. Paper-cutting is a Chinese folk art. There are many ways to cut paper. The following is a method of paper-cutting. As shown in the picture, first fold the paper, then cut out the shape, and then unfold it to get the pattern. Among the following four patterns, the one that cannot be cut out using the above method is ()

2. As shown in the picture, it is known that a flower bed is to be built on a rectangular open space. The flower bed pattern (shaded part) is required to be an axially symmetrical figure. The designs in the picture that meet the requirements are ()

A. 4 B. 3

C． 2 D． 1

3. Xiaofang drew a square kite pattern. This pattern uses the straight line of a diagonal line of the square as the axis of symmetry. Then the pattern drawn by Xiaofang may be ()

4． Fold a square piece of paper in half twice as shown in Figure 1 and Figure 2, and then dig out a small triangular hole as shown in Figure 3. The expanded shape is ()

Keywords: Free download of Beijing Normal University version of seventh grade mathematics volume 2, PPT courseware, using axial symmetry to design PPT download, axial symmetry in life PPT download, .PPT format;

For more information about the PPT courseware "Using Axis Symmetry to Design Axial Symmetry in Life", please click the Axis Symmetry in Life PPT tag.

"Designing with Axial Symmetry" Axisymmetric PPT courseware in life:

"Designing with Axial Symmetry" The first part of the Axisymmetric PPT courseware in life: Learning objectives 1. Be able to complete the given graphics into an axially symmetrical graphic with a certain straight line as the axis as required. (Key points) 2. Through paper cutting The process can be related based on the axial symmetry of the graph..

"Designing with Axial Symmetry" Axisymmetric PPT in Life:

"Using Axial Symmetry for Design" Axial Symmetry in Life PPT Part One Content: Learning Objectives 1. Experience the process of using axial symmetry for pattern design to further understand axial symmetry and its properties, accumulate experience in mathematical activities, and develop spatial concepts. 2. Understand axial symmetry Now...

"Designing with Axis Symmetry" Axis Symmetry PPT Courseware 3:

"Designing with Axial Symmetry" Axial Symmetry PPT Courseware 3 Symmetry is an idea through which people pursue throughout their lives and create order, beauty and perfection. In the world we live in, many beautiful things are designed using axial symmetry , they not only decorate me...

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Update Time: 2024-09-29

This template belongs to Mathematics courseware Beijing Normal University Edition Seventh Grade Mathematics Volume 2 industry PPT template

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