Originated from the customs, practices, habits and events of a society, idioms and proverbs are special features and the beauty of that culture. They characterize the language of each nation so they must be preserved by every ethnic group and country. This study is conducted to clarify primary school students’ knowledge of idioms and proverbs (300 students in three provinces of Vinh Phuc, Hai Duong and Bac Ninh); the reality of teachers’ designing and using crosswords to develop their knowledge of idioms and proverbs (592 teachers in Vinh Phuc, Hai Duong, Bac Ninh, Hanoi, Bac Giang, Lao Cai, Yen Bai and Ha Giang). Firstly, the research shows that students’ knowledge of idioms and proverbs is limited. Secondly, teachers are well aware of the role and effect of crosswords, but they fail to actively design crosswords and to use them effectively. In order that teachers can create highly appealing and effective crosswords, it is essential for them to have a clear and explicit procedure of designing crosswords. The procedure is proposed in this article with an end goal of enriching the national language for students when they enter primary school.

crossword puzzles, idioms, proverbs, primary schools