Firefly & Fern

Brad Caudle, Richard Caudle

Ages 8–10mathematicslearning through music

Richard Caudle, Brad Caudle

Ages 5–10mathematicslearning through music

Kim Mitzo Thompson, Karen Mitzo Hilderbrand, Ken Carder

Ages 6–9mathematicslearning through music

David Clemson, Wendy Clemson

Ages 4–8mathematicsproblem-solving

Louanne Winkle, Martha Palmer, Louanne Winkler

Ages 4–8math fundamentalsproblem-solving

Stephen S. Willoughby, Carl Bereiter, Peter Hilton

Ages 5–11mathematicsproblem-solving

arithmetic skills