To learn to distinguish homophones, it's important to have students practise using words in their usual context.
Looking for homophone reinforcement? This activity, combining art and spelling, is a perfect reinvestment activity after an explicit teaching session. To colour in the correct homophone, students must take a moment to select the word that makes sense in the sentence. This activity can also be done in small groups, so that students can help each other.
Colouring mandalas can be very meditative for your students. What's more, the final products can be used to decorate the classroom.