On my blog I posted about this fun way for kids to learn new vocabulary. Have them make a classroom museum. Basically each child is given a word and they have to make a model of that word using clay (or play-doh). They also make a sign for their exhibit with the word and an explanation of what the word means. Once everyone completes their exhibit the class goes on a museum tour and the children read and discuss the clay models as they walk around the room.
In order to take a grade I have the children complete this report. It also helps the children maintain focus if you have them report it to the class or to a buddy.
Afterwards, I like to have the children buddy up and discuss their word and their thought process behind the model. The children then take pictures of each "exhibit." The teacher loads the pictures into a slide show or a PowerPoint and then the class reviews the words each day.
It's a great way for the children to be engaged and to build their vocabulary.
You could also have the children write about their museum experience or you could have them list as many new words as they can and then share the lists (the possibilities are endless).
Note: If you do not want each child to do their own word, you can have them work with a partner or a group of three. If you have them do groups I would have a plan for dividing up the responsibilities. One person could be the artist, one could create the label/sign, and the other could be the reporter/photographer.