A quick post thanks to Bertrand / Atari Frog, to highlight the recent recovery of an unpreserved educational title for the C64 called Matchmaker: Grammar. Released in 1983 by American Educational Computer.
The disk was preserved by SoulBuster on the AtariAge forums, who has prolifically been preserving many a Atari 400/800 title. With Matchmaker, there was an Atari version one side, and C64 the other. The download can be found below.
Download
Matchmaker Grammar (1983)(American Educational Computer)(US)[disk]