Follow the Adventure
Learn through pictures
Ages 1-3
Learn through pictures, glossary, and Activity 1
Ages 4-8
This story gently introduces young readers to the idea of numbers below zero through a playful and familiar situation—spending, earning, and learning from mistakes. Young readers may simply enjoy the chaos and fun, while older readers begin to notice the hidden math woven into the illustrations. Designed to grow with the child, the story builds comfort and confidence long before these ideas appear in the classroom.
Learn through pictures, equations, and Activity 2
Ages 9-13
A Peek into Louie's World
Hand-painted watercolor scenes bring Louie’s story to life, packed with movement, humor, and details worth lingering over.
Classroom Magic
Bring the story to life with these free, print-ready activities. Each resource is designed to spark curiosity, conversation, and meaningful learning—at whatever depth works best for your child or students.
Activity 1 - What's Happening to the Number?
A quick, discussion-based activity that helps children notice how spending and earning make numbers go down or up in the story.
Activity 2 - From Negative to Positive
An open-ended number line activity that connects the kittens’ choices to moving from below zero back into positive numbers.
Educator Discussion Prompts
These discussion prompts offer a flexible, no-prep way to explore the story at any depth.
Worksheets with Answer Keys
These worksheets challenge students to solve addition and subtraction problems taken straight from the book, with answer keys included for easy adult support.
Meet the Makers
Abigail Lindquist
Abigail is a K–8 math teacher who loves turning big ideas into playful stories kids enjoy. When she’s not teaching, she can be found in nature or busy writing her latest math rap for students to hear.
Veronica Rosado
Veronica is a watercolor illustrator inspired by vintage storybooks and whimsical worlds. Art has been a large part of her life for as long as she can remember.
You can find more of Veronica's art HERE.
Stay in the Loop
Occasional letters only. Join the adventure, leave any time.