Number Activity Book

Sure, here's a short and simple poem that's suitable for pre-kindergarten and kindergarten age children:
Raindrops, raindrops falling down, Pitter-patter on the ground. Splash, splash, they make a sound, Raindrops, raindrops falling down.
Children love repetition and rhyming, so this little poem should be easy for them to remember and recite. You can also encourage them to make hand gestures to go along with the words, like holding their hands up high for "falling down" and clapping for "splash, splash." Have fun!