"Scale" Proportion PPT Courseware 6

Description

"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.

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Update Time: 2024-10-01

This template belongs to Mathematics courseware Jiangsu Education Edition Sixth Grade Mathematics Volume 2 industry PPT template

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