Students struggle with homonyms.
These cards may be used as a whole class activity or set them up as a center or as a reward for those who finish their work.
This is very motivating for those stragglers who seem to never finish their work. They see other students working with the iPads. It is amazing how quickly they finish their assignment in order to join their happy classmates.
Two QR codes are incorrect intentionally. Teach your students how to write a rebuttal. Inform them that they must submit a written respectful rebuttal to challenge several of the answers (5 & 19); you may tell them there are two incorrect responses or I find by not telling them how many are incorrect, it often makes them really think through each question. The children enjoy being able to challenge the answers.
The best part is that there is no grading for the teacher other than the rebuttals. I have included an answer key; thus, they do not need to be used with the QR codes if it is your desire to do the correcting yourself to ensure understanding. These are great for ESL students as well.