This detailed lesson plan aims to teach students about idiomatic expressions. It includes objectives, reference materials, and procedures. The procedures involve identifying idiomatic meanings from pictures, analyzing example sentences, discussing advantages and disadvantages of using idioms, and doing group activities to practice applying idioms in conversations. Students will fill in blanks with correct idioms based on meanings and find a set of idioms for a sample conversation. The teacher will present different types of idiomatic expressions and facilitate discussion and activities to help students understand and use idioms appropriately.