Points on a Coordinate Plane

Prior to Lesson: Laminate (or use page protectors) two pieces of graph paper for each students. Students will also need something to cover their work. File Folders work great! Prior to this lesson, students will need to know how to graph points on a coordinate plane.

1. Have students hide their 14 point "flag" in their game board. The example below contains the points, (1,6), (1,7), (1,8), (2,8), (3,8), (4,8), (1,9), (2,9), (3,9), (4,9) (1,10), (2,10), (3, 10), and (4,10).

2. The students also gets to set 5 guards or boobie traps. If an opponent guesses a guard or boobie trap point, they lose their next turn. The guards/boobie traps are located at points, (-5,5), (-10,13), (-10,5), (10,2), (5,14).

4. On a player's turn, they may either guess a point or ask a mathematically precise yes or no question. A question could consist of, "Is the flag in Quadrant 1?," or "Is the flag at a point where y is a greater value than 6?."

5. If a player wishes to guess a coordinate point where they think the flag is located, they must use mathematical language as well. For example, "Is the flag located at point, (2,3)?"

6. Players alternate turns until the flag is found and all points are captured.

Focus Content Area Standards

CCSS.MATH.CONTENT.5.G.A.1

Use a pair of perpendicular number lines, called axes, to define a coordinate system, with the intersection of the lines (the origin) arranged to coincide with the 0 on each line and a given point in the plane located by using an ordered pair of numbers, called its coordinates. Understand that the first number indicates how far to travel from the origin in the direction of one axis, and the second number indicates how far to travel in the direction of the second axis, with the convention that the names of the two axes and the coordinates correspond (e.g., x-axis and x-coordinate, y-axis and y-coordinate).

Standards for Mathematical Practice

CCSS.MATH.PRACTICE.MP1 Make sense of problems and persevere in solving them.

CCSS.MATH.PRACTICE.MP2 Reason abstractly and quantitatively.

CCSS.MATH.PRACTICE.MP3 Construct viable arguments and critique the reasoning of others.

CCSS.MATH.PRACTICE.MP5 Use appropriate tools strategically.

CCSS.MATH.PRACTICE.MP6 Attend to precision.

CCSS.MATH.PRACTICE.MP7 Look for and make use of structure.

CCSS.MATH.PRACTICE.MP8 Look for and express regularity in repeated reasoning.