K–5 with differentiated entry points (K / 1–2 / 3–5). Designed to plug directly into your Project GLAD® routines and Gladly Teaching systems. Teach Sound & Echolocation with a Print & Go Extension Pack that turns talk into confident reading and writing. Designed for K–5 with three entry points (K / 1–2 / 3–5), this NGSS-aligned pack builds academic vocabulary and informative/explanatory writing through chants, visuals, Big Books, Input Charts, and structured routines—without starting from scratc