The ways in which we think about gender--what constitutes masculinity or femininity--are products of a socially constructed ideology so ingrained in our beliefs systems that it dictates how we think about ourselves and how we act in relation to one another. Think about the role that gender plays in Sandra Cisneros' The House on Mango Street. How does gender affect characters' beliefs about themselves and the ways in which they act in the world? More specifically, in what ways do characters adhere to what is socially acceptable according to their gender roles? In what ways are these roles defied?
Now consider this issue beyond the scope of the novel. Do they function the same way in the world today? In what ways do our genders dictate our behavior and influence the ways we think about ourselves and our place in our communities (family, workplace, school, etc)?