Google's URL Shortener - this website works with Google accounts, which allows a user to save and track, or see the how many people used, any of their shortened URLs created. At the same time as creating a shortened URL a QR code is also created. If a teacher want to track his/her QR codes usage and keep a record of all the shortened URLs, this might be the website to use.
Vocaroo - is a website that can record audio and create a QR code to take others to the recording for playback. This could be good for introducing something to students, reading a poem, reading a story problem, providing directions, or simply giving them a message of the day. Students can also use it to record quick snippets of audio to share via QR code. If a teacher is looking to record audio and share via QR code, this might be the website to use.
Classtools QR Quiz - is a QR code generator for quizzes. Teachers can input questions and generate QR codes for each question to be displayed somewhere in the room. Then, have the students locate each question and answer them with a clipboard and looseleaf paper. If a teacher is looking to create quizzes, this might be the website to use.
QRHacker - is a website that will allow you to create custom QR codes and is probably one of the easier ones to use. Paste in your URL, generate a QR code and save the image to your computer. This is the website demonstrated within the video below.
Not on a Tablet - Here's an Option
If a classroom isn't on a MacBook, or a device that isn't a tablet, this web-based QR code scanner can access the computer's webcam and scan QR codes. It can even scan images of QR codes from your computer. However, with all of the social bookmarking sites available, I would probably just use a site like Symbaloo, Blendspace, or a simple list of links on a blog with laptop and desktop computers.
How to Create your Own Video
How to Distribute themTeachers can distribute QR a couple different ways. First, teachers can spread QR codes throughout the room as a scavenger hunt game to incorporate movement, while completing the activity associated with the class learning goal. I didn't mind this movement within my room, but this can get chaotic without ground-rules discussed prior to the search.
The second and less chaotic way is to print off a few of the QR codes, laminate them, punch a hole in the corner, and attach them to a ring to be placed on a bulletin board. Then, whenever needed, students can go to the group of QR codes, bring them back to their desks, and scan the website they want/need at the time. This method would be good for study units. If the teacher knows of several reliable websites, create a group of QR codes to keep students focused on the topic being studied. Then, the teacher can worry less about students randomly searching the web or misspelling the URL repeatedly. All in all, this method would require minimal movement around the room and focus students attention on specific teacher-vetted sites.
The third method that I can think of is posting the QR code on the SMARTBoard with SMART Notebook, Keynote, Pages, Google Docs, Google Slides, Etc. I sometimes QR codes to link my audience with a copy of the presentation; however, you can also link them to a homework assignment. Basically, just use something that will display the QR code through the LCD projector.
Of course, these are the only ways QR codes can be used in the classrooms. Please list any additional ideas about how to distribute codes to students or parents within the comments section below.