Science education in Papua New Guinea has been influenced by neo-colonial practices that have significantly contributed to the silencing of the Papua New Guinea voice. This silencing has led to the production of science curriculum documents that are irrelevant to the students for whom they are written. To avoid being caught up in neo-colonial practices, Western science educators ought to consider the notion of cultural mediators. This position, I argue, infers an obligation to take responsibility for their actions and to consider postcolonial discourses as a way of understanding the relationships and dialogue between different ways of knowing.