This poem is called the Brevee, a terse list of related rhymes. One more verse form that appears to be invented as a learning tool, it was created by Marie Adams.
The Brevee is:
o stanzaic, written in any number of sixains.
o syllabic, L1 L2 L4 L5 are 2 syllables each line and L3 & L6 are 4 syllables each.
o rhymed, rhyme scheme aabccb ddeffe. (aabccbddeffe). http://poetscollective.org/poetryforms/brevee/
