Photos are not only necessary, but vital to catch the interest of anyone, anywhere; especially in a classroom. Whether you're the lecturing teacher or the student with a presentation to give, a good photo is useful when trying to engage an audience.
This brings me to Creative Commons licensing and crediting. Basically, this week in class we were introduced to the subject of crediting other people's photos! It makes since and it's so obvious, but a lot of people never stop and think to credit their photo sources. We can easily go to google images and find whatever we need, save as, then print, post to blog, etc, without even thinking twice about who the photo may belong to. Putting it into perspective, everyone has to cite their sources when writing a paper for school; otherwise, it's plagiarism.
So, everyone, be courteous and be legal: give credit where it's needed.
