1. Surprise Mystery Field Trip!

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1 Surprise Mystery Field Trip! My name is A.J. and I know what you're thinking. You're thinking about the future. Because that's what I'm thinking about. I don't know what the future is gonna be like, but I know it's gonna be cool. In the future, we're going to have all kinds of awesome stuff like flying cars, jetpacks,

and microwavable underwear. And we're definitely going to have virtual-reality time-machine headbands. That's for sure. I can't wait until I get my virtual-reality time-machine headband. Think of it—we'll be able to travel back to any year we want! When I have my own virtual-reality time- machine headband, I know where I'm gonna go—to the year 1857. Do you want to know why? Because that was the year Joseph Gayetty invented toilet paper. I wonder what they used before 1857. On second thought, maybe I'll use my virtual-reality time-machine headband to travel back to today. Yeah! That way, I'll be able to tell myself what the future is gonna be like. It would be cool to predict the future. I hope A.J. from the future gets here soon. Hey, maybe when he gets here, both of us can go back to 1857 and watch Joseph Gayetty invent toilet paper.* My point is: it was Monday. Our

teacher—Miss Banks—was late to class because there was a retirement party in the teachers' lounge for Mr. Loring. He's been the music teacher at our school for a million hundred years. I don't think music even existed when boring Mr. Loring started teaching. He probably taught Beethoven how to play the piano. "I can't wait to see Miss Banks's new hairdo," said Alexia, this girl who rides a skateboard all the time. "Oh, yeah," said Andrea, this annoying girl with curly brown hair. "She said she was going to the hair salon after school on Friday." "I bet she's going to be beautiful," said Emily, Andrea's crybaby friend. I couldn't care less what Miss Banks's hair looked like. But then she walked into the classroom. Her hair was purple! Bright purple! "AHHHHHHHHHHH!" we all shouted. "Do you like it?" Miss Banks asked,

spinning around so we could get a good look at her hair. "Yes!" said Alexia. "Then you can have it!" Miss Banks said as she pulled a purple wig off her head and tossed it up in the air. Miss Banks pulls lots of pranks. "Ha-ha-ha!" she said. "Time is fun when you're having flies!"

That's Miss Banks's catchphrase. A catchphrase is something people say all the time for no reason. "Okay everyone, it's time for math," Miss Banks told us. "Today we're going to learn about irrational numbers. An irrational number—" She didn't have the chance to finish her