"Scale" Proportion PPT Courseware 6

"Scale" Proportion PPT Courseware 6

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"Scale" Proportion PPT Courseware 6

When drawing maps and other floor plans, it is necessary to reduce (or expand) the actual distance by a certain ratio before drawing it on the drawing. At this time, it is necessary to determine the ratio of the distance on the map to the corresponding actual distance.

Learning objectives of this lesson:

1. What is a scale?

2. How to find the scale of a picture?

3. What is a numerical scale? What is a line segment scale?

The ratio of the distance on the picture to the actual distance in a picture is called the scale of the picture.

(1). Numerical scale: expressed in numerical form such as: 1: 1000000

(2) Line segment scale: Use a numbered line segment to represent the actual distance corresponding to the ground

Notice:

1) The scale bar is different from the general ruler. It is a ratio and should not have units.

2) When calculating the scale, the unit lengths of the preceding and following items must be converted into units of the same level.

3) The first term of the scale is generally simplified to "1".

Let’s talk about:

1. What knowledge did you learn in this class?

2. What do you know about scale? What do you think needs attention?

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For more information about the "Scale Bar Proportion" PPT courseware, please click the Scale Bar ppt Proportion ppt tag.

"Understanding the Scale" Scale PPT courseware:

"Understanding the Scale" Scale PPT Courseware Teaching Objectives 1. Combined with specific examples, experience the process of drawing according to 1:1 and reducing the drawing according to a certain ratio. 2. Understand the meaning of scale and be able to draw simple diagrams according to scale. 3. Actively participate in operational activities,...

"Line Segment Scale" Scale PPT courseware:

"Line Segment Scale" Scale PPT Courseware Teaching Objectives 1. Combined with specific examples, experience the process of understanding the line segment scale and determining the direction and position of objects. 2. Able to find the actual distance based on the length of the line segment on the picture and the line segment scale, and determine the position and direction of the object..

"Application of Scale" Scale PPT Courseware 3:

"Application of Scale" Scale PPT Courseware 3 Teaching Objectives 1. Experience the process of observing the distribution diagram of zoo attractions and designing a tour route. 2. Be able to solve practical problems in life based on schematic diagrams and scales, and be able to explain the rationality of the design route. 3. In...

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