Why the Ball Bends: Reading the Game: The Math and Science Hidden in Every Soccer Game

The ball bent around the wall. Now: by how much?

Reading the Game is the second book in the Why the Ball Bends series. Maya, Theo, Sam, Priya, and their coach are back, a little older, and ready to put numbers on everything they feel on the field.

In nine chapters, readers:
- map the field on a coordinate grid and plot every pass
- measure exactly how far a curving free kick bends
- find the angle a shooter has at goal, and why it shrinks out wide
- turn pass completion into fractions, decimals, and percents
- work out speed, averages, and the energy in a kick
- use the Pythagorean theorem to measure the diagonal
- calculate the circumference and area of the center circle
- compare shots with ratios and chances
- see how the ball really moves, and why a curve needs a sideways force

Every chapter starts with a moment from a real game, works through the idea step by step, and ends with on-field activities and an answer key that shows the reasoning. Measurements are given in both meters and yards, and every worked number in the book has been independently checked.

For parents and teachers: written for readers in roughly grades 5 to 8, who can mostly work on their own. The math is aligned to Common Core (Grades 5–8) and the science to the Next Generation Science Standards, with the exact standards for each chapter listed in the back. Readers do not need Book 1 first; every idea is built from the ground up. Includes a glossary and a complete answer key.

The field, its measurements, and the rules of the game are real, taken from the IFAB Laws of the Game.

One question is left: why does the ball bend? Book 3 answers it.