That's a cool idea. I once made a similar site but for a completely different purpose -- language learning. Unfortunately I never finished it but it's still in my TODO list.
The workflow was:
- you read the sentence
- the sentence disappears
- then you type from memory
- every time you mistype something -- the next couple of words appears for a few seconds and you keep typing
That way you not only learn to type that foreign language. But you also memorise the sentence in your short-time memory and you get a feel for sentences are created (order of words, phrases, etc.).
The schtick of the Pimsleur Method was to train by starting with a chunk at the end of a sentence, and prepending until one had recall of the entire sentence. That way, once you get over the hump of the newer material, still fresh in mind, it's all downhill revising the older.
The workflow was:
- you read the sentence
- the sentence disappears
- then you type from memory
- every time you mistype something -- the next couple of words appears for a few seconds and you keep typing
That way you not only learn to type that foreign language. But you also memorise the sentence in your short-time memory and you get a feel for sentences are created (order of words, phrases, etc.).
PS. Didn't finish the site, but I did made a simplified version as an Android app: https://github.com/tkrajina/10000sentences