Concept explainers
Stack me timbers. Every October, students from the Senior Class at your school stack timbers on the quad for a large bonfire at homecoming. The timbers are stacked in layers. Each year, the seniors try to outdo the previo us year’s effort by creating a timber stack that is one layer higher than the previous year’s stack. Suppose the stack was 12 feet tall in 2010 and that each layer is 12 inches high. Copy the axes shown and plot points showing how high the stack will be for each of the years 2010, 2015, 2020, 2025, and so on through 2050, if you assume that each year a stack is built with one more layer than the previous year. How high (in feet) would the stack be in 2050? Does this seem possible? Does it seem safe?!?
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The Heart of Mathematics: An Invitation to Effective Thinking
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