Children pick up sound patterns very quickly. After you recite a nursery rhyme to children two or three times, they may be able to fill in the end rhymes if you pause. Even if you don't, they may beat you to the punch.
The RIF Guide to Encouraging Young Readers.
Read a nursery rhyme aloud to children. Then read it again, but this time have the children repeat each line after you. Once they're familiar with a rhyme, pause to let them supply the rhyming word at the end of a line. For example: "Jack and Jill went up the..." Before long, they'll be able to recite most or all of the rhyme without a cue from you. Besides nursery rhymes, children may enjoy rhyming books and longer poems from a children's anthology. See if your library has an appealing collection, but don't hesitate to share some of your favorite verse. Rhyming poets such as Robert Frost, Carl Sandburg, and Langston Hughes often appeal to both children and adults. You may even learn to recite "Who Has Seen the Wind?" by heart -- with your young readers.