As an avid supporter of weaving literature into the curriculum as often as possible, I introduced Captain Invincible and the Space Shapes by Stuart Murphy to my grade two students as a way to review 3-D shapes. Not only did the children enjoy the story of Sam and his sidekick space dog, Comet, they were inspired to build their own spaceships.  In response to this suggestion, I brought out the wooden 3-D blocks and allowed students to work in partners to create spacecrafts. This unexpected change of plans proved to be a valuable teachable moment that stemmed directly from students’ interests.