When searching for images for your teaching or learning projects, it's important to search ethically - to observe copyright, and to be aware of who owns the image you're interested in, and whether or not you have the right to use it. The good news is that it's very easy to search for images that you're allowed to use with just a few extra mouse clicks. To search for images with Creative Commons licensing, you can use a couple of methods:
In the Google advanced search settings, you can filter for various Creative Commons usage rights, as seen in this screenshot: The VCC Library offers this excellent tutorial video on finding royalty-free images using Google:
Related Resources: