If you want your jack o'latern to last, cut from the back side or the bottom of the pumpkin. Your pumpkin will last much longer as a decoration if you keep the stem intact. Also, use a small flashlight instead of a candle to light up your creation.
Zero to Eight, Chhildren's Media Use in America has shocking news about our children and the overuse of media. According to the study, infants and toddlers watch almost two hours of some sort of televiion a day. In fact, they watch more media than they are read books by their parents or caregivers. 30 percent of 0 to 1 year olds have televisions in their room.
When my husband and I lived in Germany we were amazed at the stone arch bridge work built by the Romans. The structures were made with the Roman Arch and the bridges were still in use centuries later. There are many areas in Europe where this amazing architecture can been seen today.
Here are some links about the Roman Arch that is used in Montessori's Great Lessons