I'm in the middle of teaching proportions and all the types of problems you can solve using them and I think I am realizing that I need some more real-life based lessons on using proportions. I have the "how tall is that?" and the dream bedroom lessons currently - both deal with proportions in strong ways. The problem is I'm in the middle of winter right now and going outside to do the "how tall is that?" doesn't sound very appealing and I save the dream bedroom lesson until the end of the year to lead into building the dream house. So in the near future I think I'll be looking at ways to use the properties of indirect measurement, scale factor, conversion, or maybe just basic proportional reasoning in the classroom. I love the idea of doing activities outside the classroom, but it often times isn't very practical. How do you feel?