A When Poem is a form poem. Students fill in the blanks with the appropriate information. Here is an example of a finished one:

When I was a bird, I flew.
I soared like an airplane.
I chirped, and glided, and sang.
When I was bird.

Here is the form:

When I was a(an) __________Noun__________, I __________Past Tense Verb__________.

I __________Past Tense Verb__________, Like a(an) __________Noun__________.

I _________Past Tense Verb__________, & _________Past Tense Verb________, & _________Past Tense Verb_________.

When I was a(an) __________Noun From First Line__________.