A new teacher was trying to make use of her psychology courses.
One morning she started the school day by saying to her class, “Everyone who thinks they’re stupid, stand up!”
After a few seconds, Little Elwood stood up.
The teacher was surprised. “Elwood,” she asked, “do you really think you’re stupid?”
“No, ma’am,” Elwood replied. “I just hate to see you standing there all by yourself!”
The new teacher was teaching a lesson on blood circulation and wanted to give an example. She turned upside down and stood on her head in front of the class.
“Do you see how my face is turning red?” she asked. “That’s because gravity is pulling my blood down into my head.”
The children nodded their understanding.
“Now, then,” she continued as she got back up, “why do you suppose my feet don’t turn red when I’m standing up?”
Little Elwood jumped up. “I know, I know!” he said. “It’s ’cause your feet ain’t empty!”