This fold-out flier celebrating NES games published by Hi Tech Expressions came packed with a NES game, likely Sesame Street A-B-C and 1-2-3. (Although the "DMG" in the flier name gives me pause, because that was Nintendo's in-house abbreviation for the Game Boy.)
The games shown here aren't particularly well noted for being classics, but I am very fond of Big Bird's Hide & Speak, a fun game for small children which features impressive sampled voice work by Caroll Spinney. I was older than the target audience when it first came out, but I have played it with my youngest daughter a number of times over the years, and she loved it.
Discussion Topic: Have you ever played any educational games on the NES?