This document outlines a music curriculum unit for 3rd grade that connects music to other core subjects like science, art, math, and social studies. Each lesson uses music activities and concepts to teach principles from another discipline. For example, one lesson has students make homemade drums and horns to learn about science, while another uses paintings to demonstrate how music can convey different emotions. The unit aims to show students the relationships between music and other subjects to help them better understand core classes.