Answer: read the poem aloud.
Step-by-step explanation:
After choosing the poem you want to memorize you should read the poem aloud several times. You can start by reading it a couple of times. The idea of these first readingd is to check how the words sound, to look for the words you do not know and to find the words that rhyme. You will also learn what the poem is about. After these first readings you can continue reading aloud for about 10 minutes per day until you memorize it.