Nancy Fraser describes parity-of-participation in social interaction as an important component of social justice. In this paper, we explore the participatory experiences of primary-school-children who have been labelled 'lower-attainers' in mathematics and/or writing. The paper explores justice drawing on the perspective of these pupils, in relation to how they perceive success in their school learning. We link the concept of participation to the three components of social justice outlined in Nancy Fraser's definition: a) distribution of wealth; b) recognition of status; and c) representation of voice. Our findings indicate that children who do not excel in attainment in prescribed subjects may experience obstructions to parity-of-participation within schooling which are beyond those encountered by all children. We conclude that injustices in all three senses (above) are being experienced by specific children and these injustices need urgent confrontation.