This work set out to investigate and assess the effectiveness of teaching and learning Cameroonian national languages. It examined factors that can influence various actors towards the teaching and learning of those languages, the teaching and evaluation methods, the syllabus and made proposals to facilitate the teachers' and the students' work. The data were obtained from questionnaire, interview and classroom observation, involving 02 Regional Pedagogic Inspectors, 320 students and 42 teachers of National Languages and Cultures selected through random and purposive sampling in 23 secondary...