Unit Four - Determination
Cook-a-Doodle-Do
Seven Spools of Thread
Washington Weed Whackers
Here's My Dollar
My Very Own Room

Unit Two - Investigations
The Strongest One
Wolf!
What's in Store for the Future?
The Planets in Our Solar System
Author: A True Story

Unit Five - Challenges
Boom Town
Beatrice's Goat
A Carousel of Dreams
The Printer
Animal Homes

Unit Three - Discoveries
Stone Soup
One Riddle, One Answer
Saving the Sand Dunes
The Jones Family Express
What Do Illustrators Do?

Unit Six - Achievements
A Castle on Viola Street
Wilbur's Boast
An American Hero Flies Again
Mother to Tigers
Homegrown Butterflies