| Category | Format | Size |
|---|---|---|
| Beijing Normal University seventh grade first volume mathematics | pptx | 6 MB |
"Number Axis" Rational Numbers and Their Operations PPT Courseware
Description
"Number Axis" Rational Numbers and Their Operations PPT Courseware
In mathematics, numbers are usually represented by points on a straight line. This straight line is called a number axis, and it meets the following requirements:
1. Draw a horizontal straight line and take a point 0 (called the origin) on the straight line.
2. The direction to the right on the straight line is defined as the positive direction.
3. Select a length as the unit length to get the number line.
When drawing a number line, pay attention to the following four points:
⒈Draw a straight line.
⒉ Pick a point on the straight line as the origin.
⒊Determine the positive direction and indicate it with an arrow.
⒋Select the appropriate unit length as needed.
1. Fill in the blanks:
The point representing -2 on the number line is on the _______ side of the origin, and its distance from the origin is _______. The point representing 6 is on the _______ side of the origin, and its distance from the origin is _______.
2. Judgment
Two points on the number line can represent the same rational number
3. Which of the following propositions is correct ( )
A: All points on the number axis represent integers.
B: The points representing 5 and -5 on the number axis are on both sides of the origin, and the distance to the origin is equal to 5 units in length.
C: The number axis includes two elements: the origin and the positive direction.
D: Points on the number axis can only represent positive numbers and zero.
Keywords: Rational numbers and their operations courseware, number axis courseware, Beijing Normal University edition seventh grade mathematics volume PPT courseware, seventh grade mathematics slide courseware download, rational numbers and their operations PPT courseware download, number axis PPT courseware download, .ppt format
For more information about the PPT courseware "Number Axis Rational Numbers and Their Operations", please click the Number Axis ppt Rational Numbers and Their Operations ppt tag.
"Number Axis" PPT courseware 3:
"Number Axis" PPT courseware 3 Learning objectives: 1. Understand the meaning of the number axis, clarify the three elements of the number axis, and be able to draw the number axis correctly. 2. Be able to tell the number represented by a known point on the number line; be able to express rational numbers as points on the number line. Independent learning 1...
"Number Axis" PPT courseware 2:
"Number Axis" PPT Courseware 2 Integers and fractions are collectively called rational numbers. Introduction There is a bus station on an east-west road. There are a willow tree and a poplar tree 3m and 7.5m east of the bus station respectively. 3m and 4.8m west of the bus station..
"Number Axis" PPT courseware:
"Number Axis" PPT courseware learning objectives: 1. Know the definition of a number axis, and be able to draw a number axis; 2. Be able to represent known numbers on a number axis, and be able to tell the numbers represented by points representing rational numbers on the number axis; 3 .Use the number axis to solve related problems and summarize the combination of numbers and shapes..
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Update Time: 2024-07-24
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