What are adjectives? Adjectives are an essential part of speech which your students must fully understand, and be able to identify. Begin this exercise by teaching your students that adjectives are words describe a noun. For example, words such as ‘beautiful’ and ‘good’ are adjectives. Now, ask your kids to use these examples in a sentence. Look at this worksheet, there are five sentences here. Your students’ task is to identify the adjective in each sentence, and check it.