Mike Snider doesn't quite see how you can read this poem by Georgia Douglas Johnson as any sort of pentameter. I'd add that it's not just a matter of counting the syllables. If you can recognize the allusion to Tennyson in the last line, you'll know how to scan the poem.
UPDATE: By which I don't mean to imply that Mike Snider thinks that "counting the syllables" is the be-all and end-all of prosody! In this instance, however, any reader who bothers to stop and count will realize that there isn't a single durned pentameter line to be found.