First of all I am happy to read your article, after reading I learned something about Google Maps. I agree with you that Google Maps as a public 3D GIS technology software can help students understand geography very well. For example, during my middle school period, a lot of geography knowledge could only be learned through teachers’ narration, pictures in books and some videos. But these are only in the two-dimensional level to explain, and not very good to help students learn geography knowledge. But if the technology is used at the 3D level, it will help students understand better and it will make them more efficient. Your article is very easy to understand and very knowledgeable, I hope to have another chance to read it next time.