I use Metric Day as an opportunity to teach alliteration. I distribute a chart to my students that has the letters M-E-T-R-I-C written across the top. Down the sides, I write the words adjective, noun, verb and adverb. The students have to think of words corresponding to the parts of speech and the assigned letter. When they complete their individual charts, we create cooperative sentences using each of the assigned letters in order to illustrate alliteration.