Learn about measures of central tendency while following the lives and work of some brave individuals--tornado chasers! This exciting title teaches readers about the instruments that tornado chasers use, encouraging them to analyze the data that these instruments collect. With these exciting examples, readers will be able to master mathematical statistics, measures of central tendency, box plots, mean, median, mode, and more! This title features eye-catching images, exciting practice problems, easy-to-read text, STEM themes, clear mathematical charts, and an accessible glossary and index. This 6-Pack includes six copies of this title and lesson plan.

Emily¿s dad studies the weather for a living, and he and Emily have been watching and waiting for a tornado all week. What happens when they get caught right in the storm¿s path? Storm Chaser connects to Chasing the Storm from the Discover Our World series.

Uses statistics to discuss the science of tornado chasing, the people who follow these storms, the instruments used, the first storm chasers, and the types of tornadoes found around the world.

As far as dangerous weather goes, tornadoes may be the most fierce and powerful of storms. Readers will learn how and where tornadoes hit, and how people protect themselves from life-threatening winds. While most people run away from tornadoes, storm chasers actually run after these swirling masses! Readers will be highly engaged from cover to cover as they learn the science behind these storms. This 6-Pack includes six copies of this Level S title and a lesson plan that specifically supports Guided Reading instruction.

Twins are forced to confront a violent secret from their past in Jenna Blum's first novel since her runaway bestseller, Those Who Save Us How far would you go to protect a sibling-and at what cost to yourself? In Those Who Save Us, Jenna Blum proved herself a master storyteller with brilliant insight into the spectrum of human emotion. Now, Blum turns her sights to the most intimate and mysterious of family relationships-that between twins-in her powerful and provocative second novel. As a teenager, Karena Jorge had always been the one to look out for her twin brother Charles, who suffers from bipolar disorder. But as Charles begins to refuse medication and his manic tendencies worsen, Karena finds herself caught between her loyalty to her brother and her fear for his life. Always obsessed with the weather-enraptured by its magical unpredictability that seemed to mirror his own impulses—Charles starts chasing storms, and his behavior grows increasingly erratic . . . until a terrifying storm chase with Karena ends with deadly consequences, tearing the twins apart and changing both of their lives forever. Two decades later, Karena gets a call from a psychiatric ward in Wichita, Kansas, to come pick up her brother, whom she hasn't seen or spoken to for twenty years. She soon discovers that Charles has lied to the doctors, taken medication that could make him dangerously manic, and disappeared again. Having exhausted every resource to try and track him down, Karena realizes she has only one last chance of finding him: the storms. Wherever the tornadoes are, that's where he'll be. Karena joins a team of professional stormchasers-passionate adventurers who will transform her life and give her a chance at love and redemption—and embarks on an odyssey to find her brother before he reveals the violent secret from their past and does more damage to himself . . . or to someone else. Watch a Video

Sketches featuring three storm chasers presented in graphic novel format accompany information about the history of storm chasing and requirements for the job of storm chaser.

From the author of the New York Times bestselling I Survived series, comes two gripping accounts of two young people who survived two terrifying twisters. The Tri-State Tornado of 1925 was the deadliest tornado strike in American history, tearing through three states and killing 700 people. Almost a century later, the Joplin Tornado was a mile-wide monster that nearly destroyed theheart of a vibrant city. The author of the New York Times best-selling I Survived series now brings you the vivid and true stories of two young people who survived these terrifying twisters, along with fascinating facts abouttornadoes and profiles of the well-respected scientists and storm chasers who study them.