Sixth graders observe school ground trees planted nearly 3 decades ago.  For this ecology lesson, 6th graders examine a group of trees planted near their campus and measure the diameter, circumference and growth of the tree compared...

Students discover the reproductive parts of a plant.  For this biology lesson, students identify and categorize several different plants they dissect in class.  Students record their information using a data chart.

Students investigate the age of trees by analyzing tree rings.  In this dendocronology lesson, students examine sample images of tree rings and identify their age by the amount of rings.  Students complete a chart identifying...