One day, a little girl named Sue was playing with her toy blocks. She wanted to make a tower with a big number of blocks. Sue's friend, Tom, came over to help her build the tower. They were having fun putting the blocks on top of each other.
Tom said, "I have a useful idea! Let's put the big blocks at the bottom and the small blocks at the top." Sue thought that was a great idea, so they started to build the tower again. As the tower got taller, it became harder to reach the top.
Suddenly, a little bird flew into the room and landed on the tower. The tower started to shake and wobble. Sue and Tom both shrugged, not knowing what to do. The bird looked at them and said, "I can help you make the tower taller!"
The little bird picked up the small blocks with its beak and put them on top of the tower. With the bird's help, Sue and Tom made the tallest tower they had ever seen. They were so happy and thanked the little bird for its help. The bird smiled and flew away, leaving Sue and Tom with their amazing tower.
