Old MacDonald Had a Farm

Two familiar songs spring to life thanks to David A. Carter's movable illustrations. Youngsters can open a farmyard fence as a pig jumps out with its sound, ""oink oink,"" showing through a die-cut opening in Old MacDonald Had a Farm. With the pull of a tab, the cat claps and rooster flaps in If You're Happy and You Know It. The final spreads in both books pop up, with all the animals spelling ""E-I-E-I-O!"" in one and all the animals shouting ""HOORAY!"" in the other. Music and lyrics appear on the back covers. (Aug.)