1. Graph Ordered Pairs By Mr. Bales

2. Objective • By the end of this lesson, you will be able to graph ordered pairs and find the lengths of line segments on a coordinate grid. • Standard 4MG2.2 - Students will understand that the length of a horizontal line segment equals the difference of the x-coordinates. • Standard 4MG2.3 - Students will understand that the length of a horizontal line segment equals the difference of the y-coordinates.

3. Introduce • On your desk you have a coordinate grid. Watching me, let’s place a star on the grid? • What ordered pair names the location of the star? • (3, 5) • Place a dot at (6, 5) • Move from point (3, 5) to (6, 5). How did you get there? • Place a dot at (6, 2) • Move from (6, 5) to (6, 2). How did you get there?

4. 10 9 8 7 6 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 Mallory and Nicole • Mallory and Nicole are on a treasure hunt. What ordered pair gives the location of the treasure?

5. B 4 3 2 1 0 -4 -3 -2 -1 1 2 3 4 -1 -2 -3 -4 • Graph point B at (-3, 4) • Start at (0,0) • Move 3 units to the left. • Then, move up 4 units. • Graph point B at (-3, 4) Let’s watch Mrs. Veraghese do this problem!!

6. 4 (-1, 4) 3 2 (-1, 2) 1 0 -4 -3 -2 -1 1 2 3 4 -1 -2 -3 -4 Find the length of the line segment between each set of ordered pairs. • The line segment is vertical. • Subtract the y-coordinates • 4-2 = 2 • The length is 2 units.

7. 4 3 2 1 0 -4 -3 -2 -1 1 2 3 4 -1 -2 -3 -4 Find the length of the line segment between each set of ordered pairs. • The line segment is horizontal. • Subtract the x-coordinates • 4-1 = 3 • The length is 3 units. (1, -3) (4, -3)

8. Bales Bucks • Find the length of the line segment between each set of ordered pairs. • (4, 7), (4, 12) • (4, -2), (6, -2) • (5, -12), (5, 0) • (-4, 8), (-4, 17)

9. Assignment • Page 478 - #’s 6 - 18 • Get them all correct - No Math Homework