"Making 3D Models" Projection and View PPT Courseware

Description

"Making 3D Models" Projection and View PPT Courseware

teaching objectives

knowledge and abilities

Further deepen your understanding of projection and view knowledge through hands-on practice.

Strengthen the ability to combine hands and brain in practical activities.

Understand the role of using three views to represent three-dimensional graphics, and further feel the connection between three-dimensional graphics and two-dimensional graphics.

Process and Method

Independently explore the production process of three-dimensional graphics by creating situations.

Through independent exploration, collaborative research and discussion, we deepen our understanding of projection and view.

Model making, experience the process and fun of transforming flat graphics into three-dimensional graphics.

Emotional attitudes and values

By creating problem situations, you can feel the relationship between two-dimensional graphics and three-dimensional graphics.

Through participation in mathematical practice, we cultivate the spirit of cooperative exploration and the learning qualities of respecting and understanding other people's ideas.

Through hands-on practical activities, cultivate the awareness of innovation and invention.

Activity

1. Using cardboard as the main material, make the three-dimensional models represented by the two sets of views below.

2. According to the two sets of views given below, make the corresponding physical model using potatoes (or radishes).

3. Each set of plane figures below is composed of four equilateral triangles.

(1) Point out which of them can be folded into polyhedrons, trace the above figures on paper, cut them out, fold them into a pile, and verify your answer;

(2) Draw a three-dimensional view of the polyhedron that can be folded from the above figure, and point out how the three views reflect "the length is aligned, the height is equal, and the width is equal";

(3) If the side length of the small triangle in the picture above is 1, what are the volume and surface area of ​​the corresponding polyhedron?

Class summary

1. Mathematics is a science whose main research objects are quantitative relationships and spatial forms. Quantitative relationships and spatial forms are abstracted from the real world.

It is obvious that knowledge about projections and views arises from practical needs (architecture, manufacturing, etc.) and they are very closely linked to the actual model.

2. Perceptual knowledge needs to be upgraded to rational knowledge, and practice under the guidance of theory will be more clear and effective.

3. In terms of skills, understanding the connection between plane graphics and three-dimensional graphics will help realize the mutual transformation between them as needed, that is, learn to draw three-dimensional views and derive three-dimensional graphics from three views. In terms of ability, understanding the connection between two-dimensional graphics and three-dimensional graphics is very important for cultivating spatial imagination ability.

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For more information about the PPT courseware "Projection and View to Create a Three-dimensional Model", please click the Projection and View ppt to Create a Three-dimensional Model ppt tag.

"Making 3D Models" Projection and View PPT Courseware 2:

"Making Three-dimensional Models" Projection and View PPT Courseware 2 Observe the three views, and comprehensively consider the meaning of each view and the connection between the views. You can imagine the current situation of the three-dimensional graphics represented by the three views. This is the transformation from view to three-dimensional Graphical engineering, below...

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Update Time: 2024-09-23

This template belongs to Mathematics courseware People's Education Press Ninth Grade Mathematics Volume 2 industry PPT template

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