(b) (c) 51. Development of a system of schools: (a) (b) (c) (d) 52. (b) (c) (b) (c) (d) Principal laws, administrative regulations and collective agreements and other types of arrangements designed to continuously improve the material conditions of teaching staff; Measures adopted in the public and private sectors, including those relating to working conditions, salaries, social security, career possibilities and continuing education for teaching staff; Extent to which teachers and their organisations are able to participate in the formulation of educational plans, both national and in the educational establishment in which they are employed, and preparation of curricula and teaching materials; Factors and difficulties affecting improvement of the material conditions of teaching staff. Right to choice of school: (a) (b) (c) (d) 55. Principal laws, administrative regulations and collective agreements designed to establish an adequate fellowship system for all types of education; Measures taken or proposed, including reference to programmes of affirmative action designed to overcome obstacles such as all forms of discrimination or poverty; Factors involved and difficulties encountered. Improvement of the material conditions of teaching staff: (a) 54. Principal laws, administrative regulations and collective agreements designed to promote the development of a system of schools at all levels; Comprehensive schemes and practical measures taken to develop a system of schools, such as the provision of finance, the building of schools and the provision of educational material; Statistical and other comparative data relating to the development of a system of schools at all levels; Factors involved and difficulties encountered. Establishment of an adequate fellowship system: (a) 53. Factors and difficulties affecting the implementation of this right, including information on specific and disadvantaged groups, particularly in rural areas, for which appropriate measures have not yet been fully implemented; Statistical data showing the evolution in the realisation of the right to fundamental education. Principal laws, administrative regulations, collective agreements and court decisions relating to the promotion of the right of parents and legal guardians to choose for their children schools other than those established by the public authorities; Measures taken or proposed in order to promote the right of parents to ensure the religious and moral education of their children in conformity with their own convictions; Measures taken or proposed in order to promote respect for this right, including the opportunity to attend a school where teaching is in the native language; Factors and difficulties affecting the degree of realisation of this right. Liberty to establish and direct educational institutions: (a) (b) Principal laws, administrative regulations and collective agreements designed to prevent interference with the liberty of individuals and bodies to establish and direct educational institutions; Practical measures designed to prevent interference with this liberty. 12