Discuss the theories of the origin of Black English discussed by McWhorter and explain the theory of the origin of Black English promoted by John McWhorter. Discuss McWhorter's position on the Ebonics controversy in the 1990s and his beliefs about the role of Black English in American society, in particular in the context of education. Use the example of variation in Arabic to address the question whether growing up speaking a non-standard variety of any language has any influence on how well one does at school.