Divide the class into groups. Let students decide their order within the group (1 to 6). The students in each group put their heads down except for the number ones. Think of a sentence and write one word of the sentence for the number ones to memorize. Then tell them to go to sleep and wake up the number twos. Give the number twos a word to memorize, and so on. When all of the students have seen one word, get them to consult with the other members of the group to put the sentence together.