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Complete the following activity.
Step 1: Click on the slider named “Ones” to highlight it.
Step 2: Press the key to move the slider slowly to the right up to the number 6 and answer questions 1, 2, 3, 4, & 5 below.
Step 3: Press the key to move the slider slowly until the slider stops. Answer questions 6, 7, 8, and 9 below.
Step 4: Click on the slider named “tens” to highlight it.
Step 5: Press the key to move one step. Answer the rest of the questions.
Step 6: Press the key slowly until the number 49. Answer questions 13 and 14 below.
Step 7: Continue to press the key until the slider stops. Answer question 15 below.
Step 8: Click on the slider named “hundreds” to highlight it.
Step 9: Press the key to move the slider slowly to the number 599. Answer question 16 below.
Step 10: Continue to press the key to move the slider slowly to the end. Answer question 17 below.
1. At what number did you notice the first change in pattern of the symbols?
2. Are the same numerals used for 4 and 6 in the Roman system?
3. Is 5 considered as a base number in the Roman system?
4. What number is the combination of symbols said to be “Subtractive”?
5. What number is the combination of symbols said to be “Additive”?
Before you answer question 6, go back and refresh the slider where you left off, and gradually move it to the end.
6. Did you observe a change in pattern after the number 8?
7. Do you suggest that the new symbol, X, is a base symbol in the Roman system of numbers?
8. In what notation is the number, 9, written in the Roman system of numeration?
9. What notation do you expect to see for the next number after 10?
17. What does the Roman numeral M stand for?