Grade Level: 4th Six Weeks: 6th Overarching Concept: Systems Organizing Idea: Exploring Systems in Texas

The Cotton Gin The Impact of Interchangeable Parts Factory Work Goods Services Determining What to Produce: Supply and Demand Supply and Demand The Magic Schoolbus Goes Cellular Food Into Fuel Pumping Life: The Heart and Circulatory System Breath of Life: Our Respiratory System Breathing Lung Capacity A Healthy Respiratory System

Internet Sites Chart PowerPoint Presentations Chart Link to the Scott Foresman Web site Elementary Curriculum Instructional Resources