Curated OER
Signs of Change: Tree Rings
Young scholars identify and experiment with dendrochronology (the study of tree rings to answer ecological questions about the recent past) and come up with conclusions as to what possible climatic conditions might affect tree growth in...
Curated OER
Tree-ring Dating
Students complete activity sheets and participate in discussions while they study dendrochronology. They determine a tree's age and recognize how the climate varied over time.
National Park Service
It Was a Very Good Year
Waterton-Glacier International Peace Park includes whitebark pines that are over 1,200 years old, meaning they have been there since before medieval times. The second lesson of five details how to read tree rings for climate change and...
Curated OER
Tree-Ring Dating
In this tree-ring dating worksheet, students use activity sheets to determine a tree's age and to observe changes in climate from the tree-rings. Students investigate how archaeologists use tree rings to date evidence and they answer 5...