Firefly & Fern

Louise Mathews

Ages 3–7mathematicscounting

Betsy Franco

Ages 4–8additionplay

Margery Cuyler

Ages 3–7additionmath

Loreen Leedy

Ages 4–8additionproblem-solving

Baker, Keith

Ages 2–6countingaddition

Stuart J. Murphy

Ages 3–7countingaddition

Barbara Gregorich, Roberta Bannister, Lorie DeYoung

Ages 4–8countingaddition

Eve Merriam

Ages 4–8mathematicscounting

Don L. Curry, Johanna Kaufman

Ages 3–7countingaddition

Stuart J. Murphy

Ages 4–8countingaddition

Bruce Goldstone

Ages 4–7friendshipaddition