There are a lot of apps to generate/scan bar codes and QR codes. See list below.
 Most of them are free. Today I'll be using QR Reader by TapMedia Ltd.
You are welcome to download the free app from the App Store.

Download the free app at http://www.tapmedia.co.uk/ or  
https://itunes.apple.com/us/app/qr-reader-for-ipad/id426170776?mt=8

What do they do?

     QR codes store different kinds of data like a barcode. However, they have greater storage capacity and faster readability.

What kinds of data?

     Originally developed by automotive industry for product tracking data. Now used for:

• URLs,
• Blogs, wikis,etc. 
• text messages,
• email address
• phone number
• connect to a wireless network,
• and more.

About QR Reader

• Increase student engagement
• Scaffold learning 
• Integrate in multiple contexts
• Efficient helps save class time  
• Can be used in a variety of ways in activities
• Easy to use
• Free application
• Works on multiple platforms
• Works on multiple mobile devices 
• Reads bar codes and QR codes
• Can create QR codes
• Website archives QR codes
• History or tracking feature
• Can create variety of formats @ website
• Can create mobile content
• User friendly support videos @ website
• It's fun!

Uses in the Classroom

QR Codes can be integrated into a variety of learning activities including:

• Mobile scavenger hunt  
• Meet the author  (QR code on a bookmark, on or books)  
• Student created book reviews (QR code in book) 
• Art Walk/ Gallery enhancement "Learn more about ..." (QR code integrated into displays)
• Science Project links to resources/research used
• History and literature maps (QR codes integrated into maps)
• Interactive timelines
• Add to bulletin boards and learning centers 
• Link analog and digital learning products 
• Student check answers 
• Add tutorial videos to math assignments 
• Provide homework help 
• Link to class presentations and notes 
• Teacher Professional Card with meCard or vCard
• Character Scan Page
• Tag classroom items
•  Community connections
• Conduct instant surveys
• Raise school funds
• Promote school events
• And More! 
• Teacher professional development

Where have you seen QR codes?

• Professional development publications
• NMSU RoundUp student newspaper
• Albertson’s Monopoly Game Card
• Product packaging 
• Museum displays
• Event posters link to purchasing tickets
• Where else?
  
  
  

How to create a QR code

• Click on Creator 
• Click "+" sign 
• Pick Type
• Enter information  
• Click "Create" 

How to Transfer QR Codes 

Download 

File format is .png

Insert in files

Check the code type.

Hold the device steady.

Center and focus the image.

Vary the distance.

Check lighting.

Creating QR Code Tips

Print them at least an inch square.

Use URL shortner.

Use flat surfaces.

Keep the design simple.

Test it.

Social Media Action 

 MeCard