Virtual Keyboard & Text Entry Advice

There are numerous ways to input text into handhelds. You can use the onscreen keyboard, install custom letter recognition software, learn Graffiti strokes, attach a wireless keyboard, input from a desktop computer, and more. Through eBay, I purchased a Bluetooth Virtual Keyboard. It's a small device that uses laser beams to project an image of a full-size keyboard onto a flat surface. When you touch a virtual key, the device transmits it to your handheld (Palm or Windows Mobile). It seems so futuristic and is really fun to play with. However, I wasn't able to touch type very well with the Bluetooth Virtual Keyboard. After experimenting for a while, I learned that approaching the keyboard with my fingers from the right angle improved the accuracy. This keyboard has potential, but I don't think it would work very well in a classroom setting. First, students wouldn't be learning proper keyboarding technique. Second, Bluetooth equipped keyboards don't work very well when the room is full of them because each handheld much be specifically paired with a specific keyboard. But, the keyboard has a definite wow-factor, and that's why I bought it. If you run into me at workshop or conference, ask to see the Bluetooth Virtual Keyboard because it is an intriguing piece of technology!

So, I want to know which method of text entry works best for me on my Palm TX. Many errors were made with my new Bluetooth Virtual Keyboard, that I had the inkling that Graffiti would be faster. So I used a new freeware text entry/keyboarding application called TextTutor. TextTutor presents a Palm OS user with five lines to type. You must enter each line correctly in order to move onto the next line. After completing all five lines successfully, TextTutor calculates your speed in words per minute. While I don't think TextTutor's words per minute number is very accurate, it can be a useful tool for figuring out which text entry method is the quickest. I completed TextTutor's "Review" letter group and here are my results:

Input Method	Speed
Onscreen Keyboard	10 words per minute
Bluetooth Virtual Keyboard	11 words per minute
Graffiti	12 words per minute
Wireless Keyboard	26 word per minute

The wireless keyboard is the clear winner, although I know my real typing speed is faster than 26 wpm. I find it interesting that my Graffiti speed is not much faster than my onscreen keyboard speed. If I had time, I would conduct several trials for each method, giving me more reliable data. And, for your information, the average adult handwrites at about 22 word per minute and the average elementary student handwrites an average of 8 to 10 word per minute.

I encourage teachers and students to do a similar experiment to determine how their methods of input compare. For more information about keyboarding, read my previous blog post titled Keyboarding.

Comments

[Mr. Hales Class]

My son is interested in these keyboards, but I told him the reviews I read we far from glowing.
Is this the same model you bought?
http://mobilitytoday.com/article.php?a=000063&p=ibiz_virtual_keyboard
This reviewer said the old two-fingered typist faired better that the traditional one. Most of my students are like myself, using just two fingers for the most part.
Did you have chance to try the two fingered typing on yours?

[Tony Vincent]

Casey,

I had to type with two fingers on the virutal keyboard, otherwise, using more than two fingers tends to register lots of extra characters I didn't even type.

As a side note, when I took the photo above the first time, I accidently had the flash on my camera. Guess what happened to keyboard? It typed about three lines of gibberish! So don't use this keyboard around paparazzi.

[Nevin]

I just thought that I would post a comment on an update to my program TEXTTUTOR. I have now released a shareware version that includes the following added features:

- accuracy tracking (the number and percentage of sequences correctly typed is recorded).

- 10 letter sequences per letter group (TEXTTUTOR only provides 5 sequences per letter group which can become too repetitive if someone is truly interested in improving text entry or typing speed).

- optional support of keyboard return or keystroke (graffiti) return rather than onscreen enter button.

- optional ability to increase the text font size for easier viewing (at the expense of the enter return).

I believe with these addede features TEXTTUTORPRO could be an excellent tool for students to learn to type on their Palm OS based handheld with an external keyboard.

Nevin