This is blackface which is when a white person paints their face black and they preform in shows and make fun of African Americans. This happened in cartoons, movies and live plays. This offended many African Americans because it portrayed them as stupid and inferior.
Stereotypes about African-American Women
We eat this Aunt Jemima pancake mix today but they have changed the logo slightly. During the Jim Crow times African American women were known as maids and people that just stayed home and cleaned and cooked and that was not a good representation of African Americans. Kids and Adults saw this and assumed that all African American women were maids and housekeepers. This made them think that they are superior to African Americans.
Carnival Games Negatively portraying African-Americans
As a source of entertainment many White Americans at carnivals would play the game that is shown in the picture. The White Americans would usually throw balls at the head of an African American to show that the African Americans were inferior to white Americans