andâwhat else?â
âSeeing!â
âSmelling!â
âHearing!â
Every child had a hand in the air.
âThe brain is like Command Central,â Mrs. Pidgeon said. âMessages zoom around brain cells faster than we can even imagine. And we have billions of brain cells! Theyâre called
neurons
.
âThey tell us if weâre hungry or thirsty, or if we hear an airplaneââ
âOur ears tell us that!â Ben said.
Mrs. Pidgeon used her pointer and tapped on the left ear of the figure on the chart. âCorrect. Our ears take in the vibrations that cause the sound, and then the inner parts of the ear process the vibrations and send them to the brain so that Command Central can decide what the sound is. A jet engine? A mosquito? A baby crying?â
â
Triplets
all crying at once!â Malcolm said, and put his hands over his ears.
âAnd if the brain tells you itâs a jet flying over, it also tells you toââ
âLook up at the sky?â said Nicholas.
âRight. But if the brain says, âMosquito zooming inâ?â
âThen Command Central says to slap it!â Beanie said. The children all slapped at their own arms and necks.
âRight. The brain tells your muscles to move your arm into a slapping position.â
âNever fast enough,â Tricia said. Everyone laughed.
âLetâs begin reading this chapter. Tyrone? Will you read the first paragraph aloud?â
Mrs. Pidgeon paused and looked at Gooney Bird. âGooney Bird? You with us? Or is your brain still working on its idea?â
Gooney Bird looked up. âNope,â she said. âMy idea is all worked out.â
âTell us! Tell us!â all the second-graders called.
âI will,â she said, âafter we read about the brain. Go ahead with your turn, Tyrone. Is your brain making a rap?â
Tyrone grinned. âTryinâ to,â he admitted. âBut I always tell it to stop when weâre workinâ on serious stuff.â
He stood and began to read aloud as the other children followed the words in the book.
They took turns. Tyrone stood beside his desk and read about how important the brain was, and how it never stopped working, not even when you were asleep.
âI think it makes dreams,â Felicia Ann whispered.
âAnd nightmares?â asked Keiko nervously.
âYes, nightmares too.â
âOh dear,â said Keiko.
âWhy donât you go next, Keiko?â Mrs. Pidgeon suggested.
So Keiko stood and read about how the eyes are connected to the brain, and the brain explains to us what we are seeing.
Then Malcolm read to the class the paragraph about hearing. He still wanted to tell the class about the noise the triplets in his family made. All that screaming, Malcolm described, came in through your ears as vibrations, and if there were too many vibrations, and therefore too much noise, the person whose brain was hearing it might get a terrible headache.
âMy mom always has a headache,â he said.
âBut sometimes those babies are laughing, Malcolm,â Mrs. Pidgeon pointed out. âDoes your mom have a headache then?â
âWell, no,â Malcolm admitted. âShe starts to laugh. We all do.â
One by one the children stood and read aloud about the many things that the brain can do. When Chelsea read about the sense of smell, they held up different things that had different smells: an eraser, a jar of paste, an open marking pen, and an orange from Benâs lunch. They read about taste.
âThe brain has to work
hard
,â Barry said.
âAnd it has to remember everything!â Chelsea pointed out. âIt has to
memorize!
â
âItâs how we learn, isnât it, Mrs. Pidgeon? With our brains?â Tyrone asked. His foot began to tap a bit. He snapped the fingers on one hand.
Mrs. Pidgeon started to laugh a little. âTyrone, I can tell