Mary is labeling tick marks on a number line. Starting at a tick mark labeled 4.90, she labels the next tick marks to the right with 4.91, 4.92, 4.93,…, 4.99. Then she labels the next tick mark to the right of 4.99 with 4.100. Mary then says that 4.100 is greater than 4.99. Discuss what error Mary is making. Why might Mary make this error? Describe how you might help Mary understand her error and how to correct it.
Mary is labeling tick marks on a number line. Starting at a tick mark labeled 4.90, she labels the next tick marks to the right with 4.91, 4.92, 4.93,…, 4.99. Then she labels the next tick mark to the right of 4.99 with 4.100. Mary then says that 4.100 is greater than 4.99. Discuss what error Mary is making. Why might Mary make this error? Describe how you might help Mary understand her error and how to correct it.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Mary is labeling tick marks on a number line. Starting at a tick mark labeled 4.90, she labels the next tick marks to the right with 4.91, 4.92, 4.93,…, 4.99. Then she labels the next tick mark to the right of 4.99 with 4.100. Mary then says that 4.100 is greater than 4.99.
- Discuss what error Mary is making. Why might Mary make this error?
- Describe how you might help Mary understand her error and how to correct it.
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Mark says that 0.178 is greater than 0.25. Why might Mark think this? Explain in at least two different ways why Mark’s statement is not correct.
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