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Category | Format | Size |
---|---|---|
People's Education Press Seventh Grade Mathematics Volume 2 | pptx | 6 MB |
Description
"Ordered Number Pairs" Plane Cartesian Coordinate System PPT Courseware 2
find friends
Question ⑴: The teacher has a good friend in the class, do you know who he is?
Tip 1: Given only one data "column 2", can you determine who the teacher's best friend is?
Tip 2: Given two data "column 2, row 3", can you determine who it is?
Question (2): How much data do you think is needed to determine a location?
I can
1. The correct representation method of ordinal numbers a and b is .
2. Use 1, 2, and 3 to form ______ pairs of ordered numbers, which are: _______________
3. On the movie ticket, "No. 6 in row 7" is abbreviated as (7, 6), then No. 7 in row 6 can be expressed as ______.
(8,6) means ______.
During the recess exercise, the positions of Xiaohua, Xiaojun, and Xiaogang are as shown in the figure. Xiaohua said to Xiaogang: "If my position is represented by (0, 0), and Xiaojun's position is represented by (2, 1), Then your position can be expressed as ( )"
A. (5,4) B. (4,5) C. (3,4) D. (4,3)
Challenge yourself
If a class of ordered number pairs (x, y) satisfies the equation x + y = 5, then the following pairs of numbers that do not belong to this class are ______.
(A) (3, 2) (B) (2, 3) (C) (5, 1) (D) (-1, 6)
(1) As shown in Figure 2, play the "treasure hunt" game. If the treasure is hidden under the letter plate (3, 3), then it should be found under the letter ______.
(2) As shown in Figure 3, if the position of point A is (2, 1), then the position of point B is ______, the position of point C is ______, and the positions of point D and point E are _____________ respectively.
(3) As shown in Figure 4, if the position of point A is (1, 2), then the position of point B is ____, and the position of point C is ____.
Exercise: P40, as shown in the figure, land A represents the intersection of 2nd Street and Lane 5, land B represents the intersection of 5th Street and Lane 2, if (2,5) is used to represent the location of Land A, then “(2,5 )→(3,5) →(4,5) →(5,5) →(5,4) →(5,3) →(5,2)” represents a route from point A to point B, Please use ordered number pairs to write another route from point A to point B.
Do it
"Monster Pac-Man" is a computer game. The ● mark in the picture indicates the locations that the "monster" has passed successively. If (1,2) is used to indicate the second location that the "monster" has passed, then you can use In the same way, can you express several other locations that the "monster" passes through in the picture?
Job design
1. Design a graph that is easy to describe using pairs of ordered numbers, and then tell your classmates about these pairs of ordered numbers to see if others can draw your graph.
2. Based on the actual situation of our school, please use appropriate ordered number pairs to express and describe the positional relationship of each class.
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For more information about the PPT courseware "Pairs of Ordinal Numbers in Plane Cartesian Coordinate System", please click the PPT tag of Pairs of Ordinal Numbers in Plane Cartesian Coordinate System ppt.
"Using Ordinal Number Pairs to Express Positions" PPT Courseware 2:
"Using Ordinal Number Pairs to Represent Positions" PPT Courseware 2 Learning Objectives: 1. Let students experience different methods of determining the position of objects in real situations. 2. Be able to use ordered number pairs to determine the position of objects. 3. Let students feel the close connection between life and mathematics, and train students to learn mathematics..
"Using Ordinal Number Pairs to Represent Positions" PPT courseware:
"Using Ordinal Number Pairs to Express Positions" PPT Courseware Observation and Thinking Question 1: In a physical education class, if 48 people in the class stand in a line, how do you express the position of a certain student? Question 2: If the students are arranged in 6 rows and 8 columns (as shown below), how to indicate the small...
"Ordered Number Pairs" Plane Cartesian Coordinate System PPT Courseware 3:
"Ordered Number Pairs" Plane Cartesian Coordinate System PPT Courseware 3 Students self-study textbook P39-40 Think about the following content and try to answer the following questions: What is an ordered number pair? What are the uses of ordinal number pairs? A pair of numbers a and b consisting of two numbers a and b in order is called an ordered number pair...
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Update Time: 2024-09-03
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