The Laboratory of Tree-Ring Research (LTRR) at the University of Arizona offers a diverse range of educational opportunities for learners of all ages, from PreK-12 to graduate-level studies. Courses cover dendrochronology, archaeology, earth sciences, and related interdisciplinary fields. Educators can access tailored programs designed to introduce younger students to tree-ring science, with hands-on activities that explore environmental history, fire ecology, and archaeological applications.
Educators interested in scheduling classroom visits or laboratory field trips to the Laboratory of Tree-Ring Research can explore hands-on science experiences and interdisciplinary learning opportunities. For inquiries or to arrange a visit, please contact outreach@ltrr.arizona.edu
To access the Tiny Sparks early childhood curriculum lesson plans, navigate the links on the left under Educator Resources.
Courses Offered
Tales Tree Rings Tell
Tree rings are natural storytellers, revealing how climate, fire, and human activity have shaped the environment over centuries. In this hands-on class, students will dive into dendrochronology—the science of studying time through tree rings. Using tree “cookies” (cross sections), students will explore how these growth patterns unlock insights into forest ecology, archaeology, and climate change. Tailored to meet specific K-12 state science standards, our adaptable lessons allow teachers to customize the experience for their classes, bringing the fascinating stories hidden in trees to life for every grade level.
Location: Portable Classroom Visit /LTRR
Investigating Artifacts: Uncovering the Past through Middens
In this session, students will become archaeologists, uncovering the past through “middens”—the remnants of ancient Hohokam settlements at Tumamoc. After a demonstration of excavation techniques, students will work in teams to analyze shoebox “middens,” drawing insights from artifacts found in soil layers. Through this hands-on exploration, they’ll discover how discarded items reveal valuable clues about early cultures. By analyzing, grouping, and sharing findings, students learn how archaeology—and methods like dendrochronology—help reconstruct a deeper picture of human history.
Location: Portable Classroom Visit/LTRR
Field Class: Middle Bear Canyon, Catalina Mountains Day Trip
In this immersive course on dendrochronology, students will step into the role of environmental scientists, uncovering stories etched in tree rings long before human impact. They'll dive into the fascinating world of dendrochronology—the study of time through the annual growth rings of trees—gaining hands-on experience in sampling and coring. Our adventure unfolds on Mt. Lemmon, where students will explore the urban-wildland interface near Summerhaven, examining fire history and forest management practices. Students will conduct fieldwork in designated study plots, measuring plant densities and analyzing their findings to deepen their understanding of ecosystems and conservation practices.
Location: Catalina Mountains
Tiny Sparks Preschool
Tiny Sparks is an innovative curriculum developed collaboratively by the University of Arizona Laboratory of Tree-Ring Research and Climbing Tree Preschool. This program introduces young learners to dendrochronology, archaeology, astronomy, and geology through storytelling, arts-based activities, and hands-on scientific exploration.