Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.

12+

Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.

17+

You must be at least 17 years old to access this App.

Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.

What's Hiding? Screenshots

iPad

iPhone

About What's Hiding?

Practice basic addition and subtraction concepts. Discs are counted, then covered, and some slide out from under the cover. Your job is to tell how many are still hidden under the cover. Work with numbers 1-5 or 1-10. Discs are displayed in a 5-frame or 10-frame format.

The iPad version includes an option to use numbers to 20 in two 10 frames. This option was added at the request of elementary education teacher candidates at Augustana College in Rock Island, IL who were working with kindergarten students. The iPad version also includes an option to count or subtilize the number of discs. That option was added in response to a user request.

Developed as part of the NumberSense Project at Augustana College in Rock Island, IL.

What's New in the Latest Version 1.5.6

Last updated on Oct 17, 2018

Old Versions

• Updated to support iOS12 - thank you for your patience.
• A few other minor tweaks
• As time allows, I'd enjoy hearing how you're using this app in the classroom and at home.

Version History

1.5.6

Oct 17, 2018

• Updated to support iOS12 - thank you for your patience.
• A few other minor tweaks
• As time allows, I'd enjoy hearing how you're using this app in the classroom and at home.

1.5.5

Sep 21, 2016

Fixed a screen display problem seen when using the app under iOS 10.

1.5.0

May 9, 2015

Minor tweaks. Updated interface.

I've not been able to find any problems that would result in the app not working as one user shared on iTunes. Please contact me if you find problems with this update.

1.4.4

Dec 13, 2012

What’s Hiding 1.4.4

• Now compatible with the newest, 4th Generation iPad. Works on all previous generations of the iPad and the new iPad mini.
• Should also now work on the iPhone 5... However, I don’t have one to test it on. It does work on the newest iPod.

1.4.0

Oct 25, 2012

Added options to the iPad version only
• Added an option for subitizing the initial display of discs. The length of time the set of discs is display is a user adjusted option from .1 to 2 seconds.
• Changed the display when counting discs to show the running total rather than just the final total of discs counted.
• Added an option when counting discs to hide running total and final total of discs counted.

1.3.0

Jul 27, 2012

• Now a plus app.
• iPad version includes an option to use two 10 frames. This option was added at the request of elementary education majors at Augustana College in Rock Island, IL who were working with kindergarten students.
• iPad version now saves preferences when you quit the app.

1.1.1

Nov 16, 2011

• Fixed a problem under iOS 5 where large portions of the screen would turn black.
• Added option to randomly place chips in grid.
• Screen will now rotate between both horizontal orientations.
• No longer works under iOS 3.x

1.0.0

Jan 31, 2011

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