Vocabulary Books
Having vocabuary word books are important because you can put vocabulary words that they are familiar with or things that they see all the time. It gets children to see the word and put a name to an object so they can know it.
Labeling
Label, label, label. You want to label as much as you can. This exposes them to vocabulary everyday and the same vocabulary so they can learn it quickly. This also gets them spelling the words they see around them and they can spell them independently.