One way to learn about tree growth is to look at annual rings. Tree rings show patterns of change in the tree’s life as well as changes in the area where it grows. In this activity, students will trace environmental and historical changes using a cross section of a tree, or “tree cookie.”
This is one of 96 activities that can be found in PLT’s PreK-8 Environmental Education Activity Guide. To get the activity, attend a training either in person or online and receive PLT’s PreK-8 Guide. Below are some supporting resources for this activity.