CRC/C/HND/CO/3 page 17 (f) Increase the number of teachers and improve the quality of teaching, including by investing in their training; (g) Provide opportunities for children outside schools so that they can get as much education as possible through specific programmes tailored to their life conditions; (h) Seek technical assistance from the United Nations Educational, Social and Cultural Organization (UNESCO) and UNICEF. 68. The Committee is concerned that - for various reasons, including the lack of spaces for recreational activities for children - children’s right to rest and leisure and to engage in play and recreational activities appropriate to their age is not being fully respected. 69. The Committee recommends that the State party increase its efforts to promote and protect the right to rest, leisure and play of children in conformity with article 31 of the Convention, for example by establishing safer and accessible recreational areas for children. 8. Special protection measures (arts. 22; 30; 38; 39; 40; 37 (b)-(d); 32-36 of the Convention) Migrant children and children of migrants 70. While noting the existence of bilateral agreements relating to migration entered into by the State party, the Committee is concerned at the high number of migrant children who - especially those unaccompanied and in an irregular or undocumented situation - are particularly vulnerable to becoming victims of exploitation and abuse, including sexual exploitation, and have difficulties when forcibly returned home. 71. The Committee recommends that the State party, taking into account the Committee’s general comment No. 6 (2005) on the treatment of unaccompanied and separated children outside their country of origin: (a) Pay special attention to the situation of migrant children, particularly those unaccompanied and in irregular and/or undocumented situation; (b) Take the necessary measures to intensify its efforts to prevent irregular migration, including by raising awareness about the risks involved in it, and promoting adequate conditions for the resettlement and reintegration of these children and their families upon their return; (c) Effectively monitor the implementation of bilateral and regional agreements to protect the rights of migrant children; (d) Ratify the Protocol against the Smuggling of Migrants by Land, Sea and Air, supplementing the United Nations Convention against Transnational Organized Crime.