When Mrs. Jewls instructs the students in her arithmetic class to take out their spelling books, the only person in the room who seems to be confused is Sue. But then Sue is new at Wayside School. She actually read about Mrs. Jewls and the kids in her class in Sideways Stories from Wayside School. Sue liked the book so much, that after reading it, she asked to be transferred to Wayside School! So now here she is, using a spelling book in math class. But Mrs. Jewls is an excellent teacher, and in a few short lessons, Sue comes to understand why "elf + elf = fool" and "ewe + dell = woods." Confused? Don't worry. With Mrs. Jewls' helpful explanations, you too will get the hang of it. Sue does. She learns in time not only to add single words together, but even whole paragraphs! But then Mrs. Jewls gives the class plenty of work to do. There are over 50 brainteasers in the book, and each one of them is just a little bit more challenging — and funny — than the last. With this, his second Wayside School book, Louis Sachar comes up with math puzzles so mind-boggling that students and teachers both will be tempted to flip to the back of the book to look up the answers. But they shouldn't give in too easily, or they'll miss all the fun. Because these problems truly are fun and readers do not have to be math-lovers to enjoy and learn from every one of them.