Teachers! Sit back and click your way through a whole group lesson and be amazed as you see your student engage in these PowerPoint lessons. Each Lesson is full of engaging visuals, sound and animations. Each PowerPoint can be printed into an activity book for students to use while following along each slide during a whole group lesson. Parents will enjoy reviewing these take-home books with their child. This package contains four PowerPoint Lessons: What are Ecosystems, Forest Ecosystems. Desert Ecosystems, Water Ecosystems.