How I Use It
I currently use it as bonus points on our Ecosystem/Biomes unit. It is a great motivator. Students continue to use it after the unit and it gives them a purpose to go on a nature walk. If you are a teacher in an area where "nature deficit disorder" is out of control, try this.
If you use this website for instruction, it will motivate students to get outside and photograph nature. They can connect their Flikr account and get help from a community of professionals on the photographs of nature they took. I thought this worked well. You will need to dedicate some time to setting up accounts.