1. Timber!
Discussion Questions

2. Jobs Lumberjack – Cuts down trees at end of minute
Forest Manager – Plants one tree every 15 seconds
Recorder – Keeps track of how many trees are in the forest after each minute
Timer – Tells Forest Manger every 15 seconds to plant a tree and tells lumberjack every minute to cut down trees

3. # of trees at start of a minute # of trees at end of minute
Recorder’s Chart
Minutes
# of trees at start of a minute
# of new trees
# of trees cut
# of trees at end of minute 1
120 +4 -1
123 2 3 4 5 6 7 8 9 10

4. 1. How many minutes did it take for the lumberjack to cut all the trees in the forest?

5. 2. Was the forest always shrinking? Explain your answer.

6. # of trees at start of a minute # of trees at end of minute
3.If the forest manager could develop a tree that grows at a rate of one tree per second, would tree growth keep up with the timber demand? Why or why not?
Min.
# of trees at start of a minute
# of new trees
# of trees cut
# of trees at end of minute 1
120
+60 -1
179 2 -2
237 3
273 -4
329 4 -8
381 5
-16
425 6
-32
453 7
-64
449 8
-128 9
-256
185 10
-512
-276 (not enough)

7. 4.What could be done to prevent the demise of the forest?

8. What is an ecological footprint?

9. What is an ecological footprint?
Shows the measure of human demand on the earth’s ecosystem. It compares human demand with the Earth’s capacity to regenerate. Right now we use the Earth’s resources 1.4 times faster then it can replenish them.

10. Poem “I think that I shall never see A billboard lovely as a tree.
Indeed, unless the billboards fall,
I’ll never see a tree at all.”
Ogden Nash
Write other stanzas to this poem discussing the danger of loosing trees or what could be done to prevent deforestation.
Remember to follow the rhyming scheme.