# Grid Lines: Ordered Pair Game — Ordered Pairs Math Game

> Coordinate plane math game for plotting ordered pairs and drawing lines. (iPhone/iPad app by Justin Holladay.)

- Source: https://appshunter.io/ios/app/grid-lines-ordered-pair-game/id630187892 (this page in markdown: same URL + `.md`)
- Developer: [Justin Holladay](https://appshunter.io/developer/572774950)
- Category: Education, Games, Family, Puzzle
- Price: Free with in-app purchases
- Rating: 4.33/5 from 3 App Store ratings · 3 written reviews indexed
- Age rating: 4+
- Requires: iOS 9.0 · 15 MB
- Languages: English
- Released: 2013-04-16
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/grid-lines-ordered-pair-game/id630187892/reviews.md

## What is Grid Lines?

Grid Lines is a Battleship-style math game used to teach students the coordinate plane by plotting points in all four quadrants. 

Players will race (Multiplayer mode using Bluetooth) or practice (single player mode) in identifying two locations (ordered pairs) on the grid, drawing a straight line  from one edge of the gameboard to the other passing through the two locations identified, scoring points for each shape that his or her line touches or through which his or her line passes that are located in all four quadrants of the coordinate grid. 

Grid Lines is a math app intended for upper elementary and middle school students that helps students enjoy practicing plotting ordered pairs on a coordinate grid in all four quadrants.

KEY FEATURES:
- Multiplayer Mode
- Higher order thinking game (not a drill and kill game)

MULTIPLAYER MODE
This hands-on game offers Bluetooth capabilities which will allow 2 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.


COMMON CORE MATHEMATICAL STANDARD
5.G Graph points on the coordinate plane to solve real-world and mathematical problems.

It makes you think by kmgg - Version 1.0 - Apr 17, 2013

"My 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

- Plotting ordered pairs
- Four quadrants
- Single player mode
- Bluetooth multiplayer
- Higher order thinking
- Common Core aligned

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/grid-lines-ordered-pair-game/id630187892/reviews.md

### 3/5 — Mostly works

*2013-10-26, version 1.1*

Single player mode works well and is a great math exercise. Multiplayer does not work.  We've tried 3 different apple devices.  They see each other through the game, are all running the same version of iOS as well as the game itself, but they all hang up and don't connect.  Really wanted the multiplayer aspect to work, but have to live without it for now...

### 5/5 — Nice app!

*2013-07-12, version 1.1*

This is our third app we've downloaded from this developer. All have been educational and creatively designed. This one is unique; it's excellent for general education and also for students with learning disabilities who need some extra practice.

### 5/5 — It makes you think

*2013-04-18, version 1.0*

My 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.

## Frequently asked questions about Grid Lines

### What is Grid Lines?

Grid Lines is a math game that teaches students how to plot ordered pairs on a coordinate plane. It uses a Battleship-style format where players draw lines through identified points to score.

### Who is Grid Lines for?

This app is designed for upper elementary and middle school students, aligning with Common Core Mathematical Standard 5.G for graphing points on the coordinate plane.

### Can I play Grid Lines with friends?

Yes, Grid Lines features a multiplayer mode that uses Bluetooth, allowing two players to compete on separate devices in the same room.

### Does Grid Lines have ads?

The provided data does not specify if Grid Lines contains advertisements. However, it is listed as a free app.

### How does Grid Lines help students learn?

Instead of repetitive drills, Grid Lines encourages higher-order thinking by having students strategize to achieve the highest score, leading to greater fluency in using the coordinate plane.

### What devices does Grid Lines support?

Grid Lines is available on iPhone, iPad, and iPod devices, making it accessible for various Apple users.

### How often is Grid Lines updated?

The latest version of Grid Lines is 2.1, which was released on June 5, 2018. This indicates the app has not been updated recently.

### What is the user rating for Grid Lines?

Grid Lines has a rating of 4.3 stars based on 3 user ratings, suggesting a positive reception from its users.

## Version history (last 1 release)

### 2.1 — 2018-06-05

This app has been updated by Apple to display the Apple Watch app icon.

adopted to 64bit architecture

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## More apps by Justin Holladay

- [5 Dice Math Game](https://appshunter.io/ios/app/5-dice-math-game/id572774867)
- [4 Dice a Fractions Game](https://appshunter.io/ios/app/4-dice-a-fractions-game/id583546023)
- [Mr. Wolf? {Telling Time Game}](https://appshunter.io/ios/app/mr-wolf-telling-time-game/id832156884)

All apps by Justin Holladay: https://appshunter.io/developer/572774950

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*