I'm afraid that nothing can teach children geographical knowledge more appropriately than a globe. Here is one which might be your favorite. It's not an ordinary globe. It is driven by solar energy and can rotate continuously. That's why it is called the Solar Power Rotating Globe. It rotates uninterruptedly by using light and the pull of the earth's magnetic field without being connected, or intervened by batteries or manpower. There are three photo sensors inside the globe which can absorb incandescent light or direct sunlight to provide power for its movement. Although it's a small thing, it's not cheap. Its current overseas price is 400 US dollars.