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Cutting Logs

Calculus

How much wood is here? - Explore the mathematical principles and create your own unique investigation.

Introduction

Can you cut a log like this into 3 equal pieces by volume? How could you generalise that?

Guiding Questions
  • Model a log as a cylinder or a cone cut off at the top. Which fits a real log better?
  • Estimate the volume of wood in one log from measurements you can take with a tape measure.
  • How much do you lose when cutting round logs into rectangular planks? Find the biggest plank a log allows.
  • Scale up to a stack of logs: estimate the total volume and check against the forestry industry's own formulas.
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Key Mathematical Concepts
Geometry Forestry Integration Volume
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