Sexism refers to discrimination, prejudice, or unequal treatment based on a person’s sex or gender. In school environments, sexism can appear in expectations placed on students, disciplinary responses, participation opportunities, or assumptions about behaviour and ability. Gender stereotypes may influence how concerns are interpreted—for example, expectations that girls should be compliant or emotionally accommodating, while boys may be judged differently for similar behaviour. Sexism can also shape how complaints are received or whose experiences are believed. Recognising sexism within institutions helps highlight how gender norms can influence decision-making and the distribution of support or attention within education systems.