What does the research say about vocabulary instruction?
Research states that …one of the five essential components of reading instruction is vocabulary (Mancilla-Martinez & Lesaux, 2010), and that the continuous deficit in vocabulary knowledge…represents a major obstacle to academic achievement in vital areas such as reading comprehension… (August, Carlo, Dressler, & Snow, 2005). This vocabulary deficit is so large that it will take a multiyear approach of vocabulary instruction to sub