How can I teach my class how to use "sohcahtoa" in a poem,song,or story?
Assign class or group projects to create poems, songs, or stories about sohcahtoa.
As a student many years ago, I always found it easiest to remember mnemonics that I had created myself (the sillier the better!).
You may find it useful to let your students insert Pocahontas and Krakatoa or whatever, as Lucio suggests, and see what they come up with.
Your students may find it fun to exercise their creative juices.
Here's an example