Douglass's life in Baltimore differs greatly from his life on the plantation. When Douglass goes to live with the Aulds in Baltimore, he (for a while) is given the opportunity to learn to read and write. On the planation, he never had such opportunities and was only responsible for doing small errands. After Mrs. Auld is convinced that it is a sin to teach Douglass how to read and write, Douglass is sent around on errands throughout the town. He learns that there are little boys around who are willing to teach him for the price of a few tidbits, so he is able to continue his learning.
In later years, Douglass is able to learn the caulking trade in Baltimore and becomes a skilled worker whereas on the plantation he performs no particular tasks.
It should also be mentioned, however, that in both Baltimore and on the planation, Douglass suffered from discriminatory acts, just in different ways.