In this example, the accented syllables are in capital letters since using the actual symbols (/ for strong syllables and a shallow u, called a “breve,” for unaccented syllables) is difficult in PowerPoint.  When you sound out a section of poetry, exaggerating your natural pronunciation of words can help you to see the metrical pattern.  Multisyllabic words are especially helpful; for example, you would say CURfew, not curFEW and PARTing, not partING, so the accented syllables in those words would help you to determine the pattern.