LENGTH: 5-10 minutes
TOPIC: listening and writing down what is heard
This is a great activity for your students to hear different accents.
There are many websites that offer dictation exercises (this one, in particular, is amazing), some are self-corrected, some need the help of the students since they need to check their work themselves.
Try different ones, so your students can experience different types of English while practicing writing and spelling at the same time.