Chirpy the chick learns that music is math, and songs can solve noisy problems in the third book in the Great Mathemachicken series, written by New York Times bestselling author Nancy Krulik and illustrated by Charlie Alder. Chirpy the chicken is not feeling very chipper when a group of birds calling themselves the Crow Family Band keeps the coop awake with their loud singing. She's supposed to be the Great Mathemachicken, but math can't...