Sinhala is a key subject for Grade 10 students in Sri Lanka, as it is one of the national languages and an important part of the school curriculum. At this level, students focus on enhancing their skills in reading, writing, and speaking Sinhala. They study various forms of literature, such as poetry, novels, short stories, and plays, which help them understand the cultural and historical significance of the language. Additionally, grammar and essay writing are emphasized to improve their language proficiency. Mastery of Sinhala in Grade 10 is crucial, as it prepares students for the General Certificate of Education Ordinary Level (O/L) examination, a significant milestone in the Sri Lankan education system.