Use to be, we needed to take a calculator to math class. We still do but the calculator is already in the smartphone. One less thing to carry to class. The features and functions we can find in an app are amazing. Sin, cosine, square root, angles and pi.

The calculator's screen can be small like the smartphone or as large as a touch screen tablet. The size has helped students with physical needs. The most unique app I have found is called Sums. Instead of targeting the plus, minus and other symbols. This is one slash to the right for addition, one slash to the left for subtraction.

A recently realized gem for the physically disabled is the use of the abacus. For some one with a good visual memory, the abacus is the perfect calculator. Think about it... Once the abacus and the movement of the beads are well established as muscle memory of the brain. Anyone would be able to add, subtract, multiple and divide independently. In education you have to find what works for the child not what works for the staff.

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By nebulus design

5 STARS out of 5

One different calculator app. Input the numbers you want to calculate but instead of finding and tapping on the symbol for add, subtract, multiply or divide. All you have to do is swipe in the direction of the operation.

Swipe up for equal - swipe down to clear.

With the free version you get the 4 basic operations, equal and clear. Memory and scientific functions are on the paid version.

More fine motor control for the students in my class included ataxia.

Android

By Ralf Schroth

4.5 STARS out of 5

A very nice looking high functioning calculator. Supports devices with large screens. Customization of the look of the app is possible as well as the customization of the constants you use frequently. At the Preferences you will be able to have fun. Enable the Shake. You will be able to shake the phone to get the calculations. A bit of fun as you work.

By International Travel Weather Calculator

4.5 STARS out of 5

This calculator app has the same amazing selection as the for the iPhone. The bigger screen give a roomier feel and it is easier to work without hitting the wrong keys

By Apalon

4.5 STARS out of 5

The basic calculator for everyone. Pick the type the of calculator you want. Large and bright? Steely and professional? You pick the look you want.

If you make a mistake you do not have to clear and restart. All you h ave to do is swipe right at the display window and the error disappears.

Android

By Quartic Software

4.5 STARS out of 5

* Result history

* Unit conversions

* Physical constants table

* Percentages

* 10 memories

* Binary, octal, and hexadecimal (can be enabled in Settings)

* Trig functions in degrees, radians or grads

* Scientific, engineering and fixed-point display modes

* Configurable digit grouping and decimal point

* Full built-in help

* A complete lack of advertising

RealCalc Plus contains all these features, plus:

* Fraction calculations and conversion to/from decimal

* Degrees/minutes/seconds calculations and conversion

* Landscape mode

* User-customizable unit conversions

* User-customizable constants

By Digitalchemy LLC

5 STARS out of 5

This app makes it so easy to deal with fractions. Check out the screenshot. It add, subtracts, multiples and divides fraction of all kinds. Use for cooking, sewing, quilting, woodworking, building and for math classes.

A tool that will help anyone. No need to check, double check and triple check your calculations. The handy calculator app will do all the work.

By Trovare Inc.

3 STARS out of 5

There is a math problem under the abacus. You can select addition, subtraction and other operations. I'm trying to learn the abacus and I showed it to a student. She was intrigued and I think she would be able to use the abacus. Once the abacus is memorized she would be able to the math problems and give the answer to the writer. She has no functional hand use. This would be great for her.

I was amazed at how simple it is to use. I get the addition problems correct but I can't believe that counting gets the answer I need.

Math Skills