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Open Oregon Educational Resources
Forest Measurements: An Applied Approach
Geometry—it's not just for the math classroom! Learners explore the field of forestry through a mathematical lens. An instructional resource explains how forest workers collect data about trees such as height, diameter, and age...
Curated OER
Introduction to Measuring the Forest
Students investigate how much wood is in a forest. In this forestry lesson, students calculate how much usable wood comes from the forest. They will read, Sizing Things Up from Trees + Me = Forestry, measure firewood piles, and create a...
Curated OER
From Trees to Paper
Sixth graders investigate logging and the process of paper making. In this forestry lesson, 6th graders analyze pictures of trees being processed into the paper they use everyday. Students solve and create math problems based...
Curated OER
Pacing a Gunther Chain
Learners pace a Gunther Chain, a measurement used by foresters to determine distance and area. They discuss that pacing is individualized depending on age, gender, etc. They practice to find an average pace. Teams estimate, pace and...
Curated OER
How to weigh a tree
Students pick a tree they see everyday. They measure the tree's circumference and estimate its height using similar triangles. Students are introduced to Computational Science. They use computers and calculators to compute values...
Curated OER
How to Figure Board Feet and Cost of a Board
Young scholars investigate woodworking and converting lengths to cubic measurements. In this math conversions instructional activity, students examine the length of a piece of board, and its total area by using the formula for...
Curated OER
Wanted Dead or Alive...How Big Is it?
Fourth graders estimate the measurements of trees using unconventional techniques.
Curated OER
How Big Is A Tree?
Learners estimate the height of trees on the school campus, and measure their circumferences. They develop a map of trees on the school site, conduct their measurements, and record the results on a data table.
Curated OER
Toothpicks and Timber
Learners problem-solve how to log five acres. Working in pairs, they construct models of logging sites before and after the trees are harvested. they paint their models and include other environmental details.
Texas Instruments
Texas Instruments: Real Life Real World Activity Forestry
Forest industry professionals make measurements in their work using tools including the Clinometer and the Biltmore Stick. These tools are based on the concepts of similar triangles and trigonometric ratios in a right triangle. This...