Bigger Than Daddy by Harriet Ziefert
Up! Tall! and High! by Ethan Long
and Is It Larger? Is It Smaller? by Tana Hoban
I'm going to reuse the flannel story A House For Birdie based on the book by Stuart J. Murphy that I think was first posted on Storytiming. It's absolutely perfect for discussing relative size.
We'll also watch an episode of Peg + Cat, a new PBS Kids show that will premiere sometime next fall. In this episode Peg matches pieces of cake to her picnic guests based on their size--the smallest piece goes to her smallest guest and the biggest piece to the biggest guest. There are also lots of chickens in the episode. :-)
Our craft will be a set of nesting dolls made from paper cups (small, larger, largest). I'll post a pic when the sample is ready.
Once again we'll have take-home activities from Virtual Pre-K for families to do for more comparing fun.