This is a category QR sort where the QR codes are different examples of descriptive, comparative, and experimental investigations. Included are 15 different QR codes of different examples which students will place in the varying categories. Category sheet and text of the QR codes are also included.
I have used QR codes in the classroom many times and I have found that students are very engaged using the technology, and having a puzzle/sort like this will only get them more engaged. Check out the preview for a collage of the different pages including a sample QR code.