**About the
Grids and Coordinates
Lesson**

**Summary**

This lesson introduces the first quadrant of the coordinate plane. Activity A gives the children practice in plotting a point on the grid, using given coordinates. Activity B provides an exercise in naming the coordinates of a point.

**Objectives**

• The children will be able to name the coordinates of a point on a coordinate grid;

•
The children will be able to plot a point on the grid when given the coordinates.

**Suggested Grades**

3rd Grade

4th Grade

**Excerpt **

*
Take a look at the diagram. This is called a grid. or a coordinate plane. The dark lines are the number lines. They are called the axes. *

? The horizontal number line is called the x-axis.

? The vertical number line is called the y-axis.

? The point where they join is called the origin.

*Continued...*