"Watch out, the stove will burn you," "Ooh, ice cream headache!" Students construct their conceptions about heat and temperature through their own intuitions about daily life experiences. As a result, misconceptions can be born from these constructed concepts. The activity described here addresses student misconceptions about thermal insulation and challenges them to design a structure with good insulation properties. The project provides opportunities to problem solve through the 5E learning model (Bybee 1997) which includes: exploration, investigation, design, structural analysis, synthesis, and revision. (Contains 1 resource and 2 online resources.)