English Class fourth graders learned how to install a QR reader app on their iPads on Thursday. After a little practice at scanning QR codes, the fourth graders began a new, fun way of checking math problem solutions. QR codes had been set up in the school corridor. After calculating a specific math task, pupils could then scan the QR codes on the wall to check their answers. Pupils worked with great focus and intensity, apparently enjoying this novel way of checking their answers.