After having read books with fairies as characters and examining the roles and habits of fairies in paintings across centuries, students received a letter from Lunette, the tooth fairy. Lunette explained that due to an increase in the number of Flanders’ students who are losing teeth, she needs more assistants. Lunette is recruiting more fairies to become assistant tooth fairies. However, the new tooth fairies need a place to live. Lunette asked our class if we’d be willing to share the woods behind Flanders with the new tooth fairies. Would we be willing to help the fairies set up new homes, as well? Our first graders were eager to take on the challenge. In the indoor classroom, student teams designed fairy houses, taking into consideration features such as accessibility, shelter and recreational offerings. Students brainstormed natural resources that they could use to build their planned fairy houses. Members of the team took on various roles such as site selector, material collector, landscaper, etc. Engineering skills and collaboration were developed while imaginations were deeply engaged.