The document discusses various external factors affecting educational achievement, such as social class, language, gender, and ethnicity, highlighting how these factors contribute to disparities in learning. It emphasizes that working-class students often face disadvantages due to restricted language codes, cultural deprivation, and negative teacher labeling, while middle-class students typically receive more support and resources. Additionally, it notes that gender differences in behavior and spending priorities further impact educational outcomes, along with the role of ethnicity and family involvement in education.