1983 Sinclair Research (UK)
by Eve and Paul Gorton
An interesting educational program on how to use the apostrophe.
The program is written in BASIC but it runs fast enough so you can enjoy yourself, it is also very polished and well presented.
It runs several games on how to use the mentioned apostrophe, but also on the use of the keyboard including capital letters and symbols.
You also have an option that allows you to change the sentences used in one the games so you can vary the game if you play it with, for instance your children. This is particularly good because at least one sentenced is originaly misspelled!