Pearl Diver HD 4+

Learning Games Lab, NM State University

Designed for iPad

    • 1.5 • 2 Ratings
    • Free

iPad Screenshots


Throw on your diving helmet, and head into the depths of the sea! Master the number line, including fractions and decimals, while gathering beautiful pearls. Will you find the elusive black pearl?

• Ideal for elementary and middle school students, grades 3-8.

Developed by mathematics educators, researchers, and game developers at the Learning Games Lab at New Mexico State University. Games developed by the Learning Games Lab undergo a rigorous instructional design process, extensive user testing, and input from learners, teachers, and researchers.

Pearl Diver addresses Common Core standards relevant to the number line and properties of numbers, including:
• Understanding numbers, ways of representing numbers, and number systems.
• Understanding and representing commonly used fractions.
• Understanding fractions as part of unit wholes and as locations on number lines.
• Comparing and ordering fractions, and finding their approximate locations on the number line.

For information about learning effectiveness, see the Math Snacks Research Summary:

For information about the NMSU Learning Games Lab, visit

Developed as part of the "Math Snacks" initiative. Other free animations, activities, and games are available through the Math Snacks web site at

Math Snack materials were developed with support from the National Science Foundation (0918794). Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation. Some materials were originally prototyped or discussed as part of a cooperative agreement from the U.S. Department of Education (U295A050004).

What’s New

Version 3.0

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

Bug fixes.

Ratings and Reviews

1.5 out of 5
2 Ratings

2 Ratings

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McThrill ,

A great way to learn math

This is a great math game that teaches the concept of the number line. This is a definite upgrade from the original iPhone app - the graphics have all been re-done in higher resolution, and this game looks great. The controls are nice and responsive, and best of all, it's free. What more could you want? I would strongly recommend this game if it cost 2 or 3 dollars, but at free it's a no-brainer - you really ought to pick this one up!

jsly1010 ,

Good app, kids enjoy

5th grade Special Ed teacher: students work diligently and gain understanding of concept. Becomes increasingly challenging as they advance. The timer is a deterrent to my more nervous students, making this too stressful for some to benefit from. Also, starting over invests too much time in easiest level for those who can't pick up speed for physical or neurological reasons. I recommend both Pearl Diver and Lobster Diver.

App Privacy

The developer, Learning Games Lab, NM State University, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.

More By This Developer

Eat & Move-O-Matic
Lobster Diver
4-H Livestock Record
Pearl Diver: Number Line Math
PowerPay Debt Elimination

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