- Language focus - To provide Ss with new words and phrases. - To give Ss the opportunity to master their writing a letter of invitation. - Skills: To help Ss develop their writing skills to write an invitation letter 3. - Read Unit 3– writing at home. - Asks Ss to revise the form of an informal letter. - Do as appointed Informal letter Address of writer Date of writing Dear. - Asks Ss to answer the questions. - Asks Ss to fill missing words in the letter. - Asks Ss to discuss the form of a letter of invitation.. - Do as appointed. - At an informal one, they can dress what they want. - Asks Ss to write the letter based on task 2 and the guidelines. - Asks Ss to correct their partner’s paper. - Asks Ss to finish the writing.. - Write a letter of invitation 5. - Words and phrases. - Complete the writing at home - Read Unit 3-Language Focus