Braille Keyboard Overlay

First off awesome idea and it's always amazing to see educators thinking of solutions for all of there students regardless of there different abilities. Also I believe in empathy through interaction and projects like this as well! I work as an A.T. specialist, specifically with blind and low vision students. So I would be happy to try and answer some of your questions: ~in relation to the normal Braille encountered in “real world situations”, are the dots presented here too large? yes they are a bit big. There is a standard for braille size embossing and ADA signage requirements. That being said especially for younger kiddo's learning braille jumbo braille and different sizes can be used to teach this code and get familiar with dot placement. Also there is a site that will produce 3D STL files automatically in regulation sized braille. https://touchsee.me/ ~are the dots too far raised or not raised high enough? Once a child has become in-tune with there tactile ability to recognize the Braille cells then it doesn't really have to be that high. You could actually take the dots down a bit but again no biggie either way. ~are any of the symbols, letters or numbers inaccurate? looks like the letters are good. The numbers might be a little more tricky, you have the cell placement right but since they use the same placement as the letters every number is preceded by a number sign ( dots: 3, 4, 5, and 6) but since there somewhat separated in there own area this should be pretty easy to tell the difference. ~is it better to spell out the word “back” in braille, or type it in English (as the word enter is)? I think the braille you have for the "back" is actually more inline with the standard braille a visually impaired student would be in contact with. ~I have a “key” with the symbols, possibly for a sighted person assisting in the project, but these symbols will print with the job – are they necessary? I don't think so. But the raised print lettering would also be great for those with low vision, especially the high contrast that can be achieved. These are great for duel media learner and braille learners starting out typing as it's a very important skill that they will depend on throughout there lives. Eventually though the goal would to have them know the keyboard well enough to proficient typers with minimal tactile markings (maybe just F and J) and audio feedback from a screen reader.