Morphology! Increase your student's reading and writing vocabulary by helping them understand the meaning of common prefixes, roots, and suffixes. As students learn the meaning of different parts of words, they can apply this reading strategy to decode new words, increasing their vocabulary and reading comprehension.This FREE SAMPLE includes the following prefixes, roots, and suffixes: Prefixes: sub = under semi = half super = above mid = middle Roots: astr = star chron = time bio = life