When high school senior Matt Forsythe discovers a weird computer and a secret door at school, a series of events unfolds where he and his friends solve one mathematical puzzle after another. After finding a teleportal, they travel to a strange world where numbers are actually alive! There they meet the mad scientist Maglio and the ghostly Fifty-Seven and discover that some of the numbers are mysteriously disappearing.
Charles Fischer has taught in public and private schools in a variety of settings, from rural Maine to inner city Atlanta. In the past 20 years, he has worked with a wide range of students from 4th grade to AP English and has been nominated for Teacher of the Year four times. He has his Master’s degree in Teaching & Learning from the University of Southern Maine, and received his B.A. in English Literature and Creative Writing from Binghamton University. His fist novel, Beyond Infinity, won a 2014 Independent Publisher Book Award bronze medal (YA fiction). His areas of expertise are in Socratic seminar, dialogue, listening, inquiry, and critical & creative thinking. He is currently working on a three book series focused on all of these territories.
One of the reasons I wrote this book is because I wanted to make mathematics more interesting for students. For many younger students, math just seems like repetitive arithmetic operations. Let's face it, there's not a lot of excitement there - though it might be necessary. The domain of mathematics is absolutely huge, though, and it's our job as teachers to at least show students more of the domain.
Nine has a curious property that makes it very useful in a lot of those “magic” number tricks where you choose a number and after a few steps someone tells you the amazing result. For example, pick a number besides zero. Multiply it by nine. Add the digits together, and keep adding the results together until you reach a single digit. Result: nine. Try it again if you don’t believe me. Just make sure to keep adding the digits together until there’s just a single digit left. For example 9 × 9 = 81, and then 8 + 1 = 9. Or 23 × 9 equals 207, and 2 + 0 + 7 = 9. Here’s another: 177 × 9 = 1593, and 1 + 5 + 9 + 3 = 18 and then 1 + 8 = 9 as a single digit.