A/RES/59/261 testing, including pharmaceutical products and medical technologies, affordable to all, giving due importance to the prevention of mother-to-child transmission of the virus; Education 21. Also calls upon all States: (a) To recognize the right to education on the basis of equal opportunity and non-discrimination by making primary education compulsory and available free to all children, by ensuring that all children have access to education of good quality, as well as by making secondary education generally available and accessible to all, in particular by the progressive introduction of free education, bearing in mind that special measures to ensure equal access, including affirmative action, contribute to achieving equal opportunity and combating exclusion; (b) To design and implement programmes to provide social services and support to pregnant adolescents and adolescent mothers, in particular by enabling them to continue and complete their education; (c) To take all appropriate measures to prevent racism and discriminatory and xenophobic attitudes and behaviour through education, keeping in mind the important role that children play in changing those practices; (d) To ensure that children, from an early age, benefit from education programmes, materials and activities that develop respect for human rights and reflect fully the values of peace, non-violence against oneself and others, tolerance and gender equality; (e) To harness the rapidly evolving information and communication technologies to support education at an affordable cost, including open and distance education, while reducing inequality in access and quality; (f) To enable children, including adolescents, to exercise their right to express their views freely, according to their evolving capacity, and build self-esteem, acquire knowledge and skills, such as those for conflict resolution, decision-making and communication, to meet the challenges of life; 22. Invites the United Nations Educational, Scientific and Cultural Organization to continue to implement its mandated role in coordinating Education for All, as a means of reaching the commitments contained in the Millennium Declaration in this regard; 23. Urges States: (a) To take measures to protect schoolchildren from violence, injury or abuse, including sexual abuse and intimidation or maltreatment in schools, to establish complaint mechanisms that are age-appropriate and accessible to children and to undertake thorough and prompt investigations of all acts of violence and discrimination; (b) To take measures to eliminate the use of corporal punishment in schools; Freedom from violence 24. Calls upon States: (a) To take all appropriate measures to prevent and protect children from all forms of violence, including physical, mental and sexual violence, torture, child abuse, domestic violence, and abuse by police, other law enforcement authorities 5