Curated OER
Tree Cookies
You will find a viewer-friendly PowerPoint on the growth rings and other features found in a cross-section of a tree trunk, affectionately known as a "tree cookie." A few worksheets are provided for practice counting tree rings and a...
Curated OER
Tree Friends
Students are introduced to tree structure and use. They identify their special tree using all senses except sight. Students identify six different internal parts within a cross section of tree trunk (bark, phloem, xylem, cambium,...
Curated OER
Lesson Five: Identifying Christmas Trees
Stuudents distinguish between pines, spruces and firs they may see in their homes, by recognizing key characteristics such as shape, arrangement of needles and colouring. They recognize these same characteristics in trees growing outside.
Curated OER
Trees for Tomorrow
Students examine how to plan for prudent use of trees so that we never run out of this natural resource. They determine what the oldest wooden object in their home is and draw picture of it. They observe a cross section of a tree and...
Curated OER
Global Change- Time and Cycles
Young scholars study trees and their growth. In this investigative lesson students work in groups to reconstruct a 50 year climatic history using a simulated tree ring.