Repeat, Repeat, Repeat!
Highlight and repeat new words. Label new words and give a simple definition, then repeat or emphasize the word each time it reappears. Repetition helps children learn new vocabulary, and the context of the story helps too.
Read it again! Rereading the same book several times allows children to become familiar with the story, enabling them to better learn new vocabulary words and concepts as well as engage in conversation. So keep bringing out your favorites!
Some suggestions for your bookshelf:
Goodnight, Moon by Margaret Wise Brown (0+)
Head, Shoulders, Knees, and Toes by Annie Kubler (0+)
Where the Wild Things Are by Maurice Sendak (2+)
Harold and the Purple Crayon by Crockett Johnson (3+)
The Giving Tree by Shel Silverstein (4+)
Green Eggs and Ham by Dr. Seuss (4+)
(from Scholastic and Common Sense Media.org)