Transcript Find Points on a Grid

Find Points on a Grid
By Mr. Bales
Objective
• By the end of the lesson, you will be able to use
ordered pairs to find and name points on a grid.
• Standard 4MG2.1 - Students will draw the
points corresponding to linear relationships on
graph paper (e.g., draw 10 points on the graph
of the equation y=3x and connect them by using
a straight line.
Introduce
10
9
• The map gives the
locations of several
students’ homes and
their school. From
the school, Ty lives
5 units right and 3
units up. This is
written as (5, 3).
8
7
6
5
4
3
2
1
0
1
2
3
4
5
6
7
8
9
10
Teach
• The map just shown is an example of a
coordinate plane.
• A coordinate plane is formed when two
number lines intersect at their zero points.
The lines are perpendicular.
The vertical line
is the y-axis.
10
9
8
7
6
5
4
3
The ordered
pair (0, 0)
is the origin.
2
The horizontal line
is the x-axis.
1
0
1
2
3
4
5
6
7
8
9
10
Ordered Pair
• The point (5, 3) is an example of an
ordered pair.
• The numbers in an ordered pair are called
coordinates. The coordinates give the
location of the point.
•
(5, 3)
x-coordinate
y-coordinate
10
•What ordered pair
gives the location for
the library?
9
8
•What is located at
(7,1)?
7
6
•What direction do
you move from zero to
find the first number in
the ordered pair?
5
4
3
2
1
0
1
2
3
4
5
6
7
8
•What direction do
you move from the first
number to find the
second number in an
9 10 ordered pair?
Take it away Mr.
Haresty!!
Mr. Hardesty!!
Bales Bucks!!
Game On!!
Assignment
• Page 474-475 - #’s 6 - 11 and 17 -21
• Get them all correct - No Math
Homework