A few weeks back I designed a new 'font' for teachers - Letterbox fonts I searched everywhere for something like this, and could not find it, so made my own. It is quite a unique idea I think.
I have added some more fonts to the collection to make it even more value for you.
I added a 'separated' version, in case for some reason you would want the boxes separated within a word. Also a 'blends' version that has boxes that will fit letter combinations like bl, th, gh.... To type in that font you will need to utilise a keyboard key (so you know which keystroke will achieve each shape) that I have included in the zip file.
If you have purchased out letterbox fonts before now, please log in to TpT for the revised edition - go to your purchased items on the dashboard and re-download this purchase.