Browse Top Lists Blog Fern Picks About

Loading...

Firefly & Fern

The right book changes everything.

Independent book recommendations for young readers ages 0-18.

Discover

Browse
Fern Book Finder
Top Lists
New Arrivals
Age Groups

Resources

Blog
Age Guide
Newsletter

Company

About
Contact
Privacy
Terms

2026 Firefly & Fern. All rights reserved.

Firefly & Fern is an independent platform. We are not affiliated with any publisher. We use affiliate links — when you buy through our links, we may earn a small commission at no extra cost to you.

Theme

foundational math skills

Books about foundational math skills for readers of all ages.

Cover of Numbers (Double Delight Series)

Numbers (Double Delight Series)

Mary Novick, Sybel Harlin

Ages 2–5countingnumbers

Cover of Math Grade 1 (McGraw-Hill Learning Materials Spectrum)

Math Grade 1 (McGraw-Hill Learning Materials Spectrum)

Thomas J. Richards, Marjorie Diggs Freeman

Ages 5–8number senseproblem-solving

Cover of Numbers from One to Ten (Pbs Kids)

Numbers from One to Ten (Pbs Kids)

Ages 2–5countingnumbers