The PME must contain technical and pedagogical support and initiatives that specifically respond to priority student needs and implement pedagogical strategies for students with low academic achievement (see Chapter 2 for the role of the SEP in the funding system and Chapter 4 for the use of school improvement plans in schools). As a complement to the SEP and conditional on participating in the SEP, school providers can receive a Grant for Concentration of Priority Students (Subuencion por Concentration de Alumnos Prioritarios). This grant provides an extra amount per student which depends on the proportion of disadvantaged students in the school. School providers with schools enrolling students in extreme poverty can also benefit from a Grant for Retention (Subuencion Educacional Pro-retencion). The grant is provided for each disadvantaged student belonging to a family which participates in the programme Chile Solidario, a part of Chile’s social protection system designed to address the needs of vulnerable families, individuals and geographical areas (also see Chapter 2) (MINEDUC, ACE and ES, 2016). Teachers in difficult working conditions receive a Difficult Conditions of Work allowance (Asignacion por desempeno en condiciones dificiles).