Jennifer Kroll – författare

Counting: Earth's Biomes

Showdown: Animal Defenses

Odyssey

An Instructional Guide for Literature

Their Eyes Were Watching God

An Instructional Guide for Literature

George Washington Carver: Planting Ideas

Alexander Graham Bell: Called to Invent

Annie Oakley: Little Sure Shot

George Washington Carver: Sembrar Ideas

Alexander Graham Bell: Destinado a Inventar

Annie Oakley: Un Tiro Seguro

Daniel Boone: Dentro del Bosque

Cutting Edge

Breakthroughs in Technology

Mighty Micros

Little Things Big Results

a la Vanguardia: Adelantos En Tecnología

Pequeos Poderosos: Cosas Diminutas, Grandes Resultados

Lord of the Flies

An Instructional Guide for Literature

Daniel Boone: Hacia Tierras Desconocidas

Daniel Boone

Into the Wilderness