Celebrate Earth Day this year with a few pages to practice math. Perfect for Earth Day or throughout April, these activities are ideal for use as supplemental material during a substitute teacher's class or as an additional task in your "When I'm Done" box. Hence, they make excellent morning work or homework sheets. Ideally suited for first-grade students, these ready-to-use materials offer a fun yet educational review that won't feel like work to your students-just pure fun!