Find a QR Code Generator from dozens of choices. This atomurl seems nice enough. Easy to plug in the URL and make different sizes to try out on my website pages and powerpoint sides.
I like this size for my students page. Now I can’t wait for tomorrow’s next class so I can see how they use it. I’m still climbing the smartphone learning curve. The intriguing ideas (tattoo on the back of some fellow’s bald head) suggest that Quick Response Code has legs of some special quality. I like this one too, with colors from qrbase.com and having a special size for google, they say, at 128×128.