International agencies are also influential in each of these, of course. Schools exclude when they do not reach out proactively to the families of children who are most vulnerable. Schools exclude when they fail to concern themselves with those children who do not turn up. Schools contribute to exclusion by not putting systems in place for formally noticing and tracking the non-attender or truant. Exclusions happen to both individuals alone and to individuals as members of groups or categories of children.
Schools exclude by costing too much, directly and by implication.
The education bureaucracy excludes at the meso level by failing to recognize the diversity of learners within its purview. The education bureaucracy excludes children when it fails to provide their teachers with the learning and professional status they need to be effectively competent, responsible and motivated. Children already at risk are made more vulnerable to exclusion when the system's testing procedures fail to reflect their individual learning characteristics and home backgrounds and to accommodate teaching to these. The education bureaucracy excludes children when it persists in creating inappropriate and irrelevant curriculum and materials of poor pedagogical quality. National government and education policy-making bodies exclude by not seriously or comprehensively identifying barriers to education for families and children at risk, or creating opportunities to enable their participation.