"Determining the Location" PPT Courseware 4

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"Determining the Location" PPT Courseware 4

How to use number pairs to determine position:

To use pairs of numbers to represent the position of an object, first determine the number of columns and then the number of rows. First in columns and then in rows, vertical columns and horizontal rows.

Writing rules:

1) Parentheses 2) Column number first, row number last 3) Comma in the middle

Note: To determine the column number, generally count from the left to the right of the observer, and to determine the row number, generally count from front to back.

do you know?

There are horizontal lines and vertical lines on the globe. The vertical lines connecting the two poles are called longitudes, and the horizontal coils perpendicular to the longitudes are called latitudes. The correct location of any point on the earth can be determined based on the longitude and latitude lines. For example, Beijing is at 40 degrees north latitude and 116 degrees east longitude.

Think about it: How do you use pairs of numbers to determine the position of an object on graph paper?

Use number pairs on the graph paper to determine the position of the object. First find out which column and row the number pair represents, and then draw a point at the intersection of the column number and row number. Expressed as: (number of columns, number of rows)

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Update Time: 2024-11-22

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

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