Episode 3
The episode starts with Nobita running into Doraemon and asking him for a tool to help him study for his examinations that takes place tomorrow. Doraemon gives him some Memory Bread which Nobita eats and understands the work. Later, he relaxed and ate desserts until he became full, but Doraemon forces him to eats extra memory bread. The episode ends with Nobita vomiting and re-eating memory bread from the start the very next day. Later remade as "Copying Toast" in 1992.
Aired 04/04/1979EP 3 - Episode 3
Doraemon
Nobi Nobita is a 4th-grade boy in Tokyo. One day, a round, blue cat-style robot (minus ears) pops up in his desk drawer. Nobita's great-great-grandson (or something) lives in the 22nd Century, but thanks to Nobita's mistakes, the entire family is living in poverty. To rectify this, Nobita's descendent is sent Doraemon back to the past, to help prevent Nobita from making mistakes. Of course this is a difficult task since Nobita is the weakest and least intelligent child in his class. Doraemon does, however, have a 4-dimensional pocket on his front, which contains cool gadgets from the future. With these toys, Doraemon will try to help Nobita. Unfortunately, Nobita also has the bad habit of misusing Doraemon's gadgets and landing himself in yet more trouble?
(Source: AnimeNfo)