## Grid Lines: Ordered Pair Game

The objective of this game is to score the highest points by using ordered pairs, drawing a line that passes through or touches shapes that are located in all four quadrants of the coordinate grid. Grid Lines is a **Battleship-style math app** used to teach students the coordinate plane. Students will get practice plotting points on a coordinate plane by playing a game similar to Battleship. Grid Lines is a math app intended for upper-elementary and middle school students that helps them enjoy practising plotting ordered pairs on a coordinate grid in all four quadrants.

It makes you think ★★★★★

by kmgg - Version 1.0 - Apr 17, 2013My fifth graders are loving this app. They like trying to figure out how to get the highest score when playing on their own, but once they discovered they could play each other using blue tooth, they were really hooked. I was glad that the app allowed this kind of connectivity in the classroom. All of this energy is resulting in greater fluency in using the coordinate plane. Thank you for creating such an challenging and yet engaging app that also gives a solid learning opportunity.

### Key Features:

- Bluetooth 2 Player Mode
- Higher-order thinking game
- Progress reports can be sent to the teacher (making formative assessment easy)

#### Instructions:

Players will race (two player mode) or practice (single player mode) to identify two locations on the grid, drawing a straight line from one edge of the gameboard to the other passing through the two locations identified. Points are scored for each shape that his or her line touches or through which his or her line passes.

To start, a player will select a level and then roll all four dice. The player now tries to figure out the ordered pairs that will score the highest points.

#### Levels:

There are **4 levels** with **25 rounds** in each level. Start from the easiest level and complete them all or skip to the hardest level and challenge yourself!

### Email (Send Scores):

It is recommended that you enter your teacher's or parent's email address to send them your scores so they can see how much improvement you are making. It is not necessary to have an email to play the game and no personal data is collected from the device.

#### Assessment

After students have played the game awhile, have them email you their scores. You will receive useful information about how well your students are doing. You will instantly be able to assess whether they are thinking or just guessing.

## Multi-Player Game:

This hands-on math game has WiFi capabilities which will allow 5 players to compete against each other in the same room on separate devices. The new feature will help parents, teachers, and students play competitively or cooperatively with each other using the iPhone, iPad or iTouch.

The multi-player game mode utilizes WiFi on your device to connect with another device in the same area. Simply click on “Multi Player Game” and then follow the screens. Be patient; sometimes it takes a few seconds to connect to another device.

# Download the APP Here!!

#### Feedback & Recommendations:

We would love to receive feedback from you to help us in creating and evolving this game into the best learning environment for your students or children.

### Common Core Standards:

**5.G.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 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).

**5.G.2 ** Represent real world and mathematical problems by graphing points in the first quadrant of the coordinate plane, and interpret coordinate values of points in the context of the situation.

** 6.G.3** Draw polygons in the coordinate plane given coordinates for the vertices; use coordinates to find the length of a side joining points with the same first coordinate or the same second coordinate. Apply these techniques in the context of solving real-world and mathematical problems.

**6.NS.6 ** Understand a rational number as a point on the number line. Extend number line diagrams and coordinate axes familiar from previous grades to represent points on the line and in the plane with negative number coordinates.

**6.NS.6.b** Understand signs of numbers in ordered pairs as indicating locations in quadrants of the coordinate plane; recognize that when two ordered pairs differ only by signs, the locations of the points are related by reflections across one or both axes.

**6.NS.6.c ** Find and position integers and other rational numbers on a horizontal or vertical number line diagram; find and position pairs of integers and other rational numbers on a coordinate plane.

**6.NS.8 ** Solve real-world and mathematical problems by graphing points in all four quadrants of the coordinate plane. Include use of coordinates and absolute value to find distances between points with the same first coordinate or the same second coordinate.