Calderón, Róger and Seydi Rosales, Seydi and Espinoza, Katherine (2015) Contextualize videos implementation as an innovative didactic strategies to develop the English speaking ability in 9th grade students of Manuel Hernandez Martinez’ institute, evening turn, on the second semester 2014. Facultad Regional Multidisciplinaria de Carazo - UNAN,MANAGUA, 4 (10). pp. 80-83. ISSN 2410-5708