Harry Wyeth wrote: >The very best way to demonstrate the "feel" of a kilogram is to >show a liter water bottle, filled with water!
Yes I agree. That is a good demonstration. >Explain the beauty of the connection between the two. It is definitely worth teaching but I personally don't think it has much 'beauty'. It is a convenience but not special. "A pint is a pound" is familiar to many Americans.
