EDUCATION AND SCIENCE
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Answering Questions for Kids

Petra - the 5-year old daughter of friends - started asking questions about trees during the to COVID-19 pandemic. Her questions & questions from other kids (of all ages) led to a short video series "Answering Petra's Questions". Share & subscribe.

Teaching in Botswana

Educating students in a study aboard course in Botswana about the value and importance of all wildlife including trees and herbaceous plants.​

Why Hire an Arborist

Tree work is a complex and dangerous profession requiring a high degree of skill and education. Certified arborists help protect trees through science based education and practice. 

Pine-NOT-A-PIne

The basic identification differences between pine, spruce, and fir. More tree identification videos.

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  • Home
  • Teaching
    • Assessments
    • Video Creation
    • Resources
  • Research & Outreach
    • Presentations
    • Videos
    • Tree Calculators >
      • Crown Diameter Calculator
      • Tree Protection Zone
      • Trunk Flare Diameter Calculator
    • Tree ID >
      • American chestnut
      • American elm
      • American hazel
      • alternate-leaf dogwood
      • bald cypress
      • balsam poplar
      • black chokeberry
      • black locust
      • Callery pear
      • eastern redbud
      • eastern redcedar
      • eastern white pine
      • European buckthorn
      • ginkgo
      • grey dogwood
      • hackberry
      • high-bush cranberry
      • honeylocust
      • horse-chestnut
      • ironwood
      • Japanese tree lilac
      • Kentucky coffeetree
      • musclewood
      • northern catalpa
      • Norway maple
      • Norway spruce
      • Ohio buckeye
      • ponderosa pine
      • quaking aspen
      • staghorn sumac
      • wafer-ash
      • witch-hazel
  • In the News
  • Contact & About
    • Awards
    • Organizations