Half caste by John Agard
Here is an audio clip of Agard reading his own poem. I think it is important to hear the poem read by Agard because, as you will hear, it is written to be performed in a Guyanese Creole dialect.
And here are some of my thoughts about this poem which is part of the IGCSE Literature anthology. Have a copy of the poem in front of you and take notes as you listen along.