Today we experienced our first building challenge.  I gave them the challenge but we did not discuss how to work in a group.  Some groups worked well together and other groups had some struggles.  Then we brainstormed as a class what we wanted out group work rules to be for the rest of the year so in the future we will not have any groups struggling. 
Their challenge was to build the tallest freestanding structure out of 20 pieces of spaghetti and 100 cm of masking tape.  Their structure must be topped with a large marshmallow and be able to withstand the weight. 
Congratulations to Mia, Hannah, Alexa, and Kameron for the only standing structure.