The Lake Washington School District says the lesson was about the Industrial Revolution. In a statement, the district wrote, "Specifically, it is about the impact that the invention of the cotton gin had on the Industrial Revolution."
Seattle TV station KIRO 7 got viewed the text book students are using. Chapter 11, the chapter the 7th graders are studying right now, is about slavery and the invention of the cotton gin.
"It's not just about my daughter, all races should not have to participate in this. It's wrong, it's absolutely wrong," added Walker.
She wants the school to drop the "cotton picking lesson" from the curriculum.
Walker will meet with the teacher and the principal on Wednesday.