I. Fill in the blanks (38 points)
1、(
) is called a column, (
) calls the row to determine from which column (
) to (
), determine from which line (
) to (
) number.
2. Xiaojun's position in the classroom is column 4, line 5, which is expressed as (
)。
3. In the number pair (3, 3), the front 3 indicates (
), the last 3 digits indicate (
)。
How many pairs (6) are Zhang Qiang's seats in the class?
,
5), it is in _ _ _ column _ _ _ row, and his deskmate's seat is also represented by several pairs, which may be (_ _ _, _ _ _) or (_ _ _, _ _ _).
5. Li Ping's position in the classroom is (5,5), and the position of the classmate sitting in front of him should be (
)。
6. In the cinema, Xiao Fang sits in the eighth row of column A 10, which can be expressed as A (10,8), and Xiao Ming sits in the sixth column of column B, which can be expressed as (6, 12). Then the location of Xiaodong is column 2, row 5 of area C, which can be expressed as (
)(
)。 Xiaoyu's sitting position is d (3,2), which means he is sitting in the first place (
) area (
) column number (
) ok.
Second, the judgment (correct "√", wrong "×"
. ) (12 points)
1. The desks in the classroom are arranged in 6 columns and 6 rows. Min Min's seat is (2, 7) right.
……(
)
2. If the positions represented by the number pairs (3, x) and (y, 4) are in the same row, then X=4. ………………(
)
3. Number pairs (5, 6) and (6, 5) indicate the same position. ………………………………(
)
4. Point A is represented by a number pair as (3,4). Pan 2 squares to the right, and then pan 1 square down. Here's the situation.
(5,3)。 ………………………………………………………………………………(
)
Three. Operational exploration (50 points)
(1) The position of high school on the map is represented by a number pair (
), the location of the TV station is (
);
(2) The development zone is located at (15,7) and the railway station is located at (17,6). Please mark it on the map.
(3) From the real Little Square to Hope Square (
) go (
), and then go to (
) go (
) grid.
2. The floor of Li's living room should be paved with floor tiles. Nine tiles with different colors should be laid in the following positions: (7, 2), (5, 3), (9, 3), (3, 4), (1 1, 4), (5, 5), and.
Have you found the position regularity of colored floor tiles?
3. Fill in the blanks and draw pictures as needed.
(1) Use number pairs to indicate the positions of the three vertices of a triangle.
A(_，_) B(_，_) C(_，_)
(2) Rotate the triangle ABC 90 clockwise around point B? ,
Mark point A 1 after rotating a, mark point B 1 after rotating b,
C rotate the point C 1, and then draw the rotated figure.
(3) The three vertices of the rotated triangle are represented by number pairs.
Location.
A 1(_，_) B 1(_，_) C 1(_，_)
4. Complete the following questions as required.
1, and the position of ABCD is represented by a number pair:
A (
)B(
)C(
)D(
)
2. Translate the rectangular ABCD 2 box to the right, and then translate it down.
1 grid, using digital pairs to represent the positions of the four vertices after translation.
A 1(
)B 1(
)C 1(
)D 1(
)
3. Rotate the rectangle ABCD 90 degrees counterclockwise around point C and draw it.
The rotated figure and the positions of the four vertices after rotation are represented by several pairs.
A2(
)B2(
)C2(
)D2(
)