Download Roman Numerals - Trimble County Schools

Roman Numerals
•Roman Numerals follow the
history of ancient Rome.
•From its beginning in 3rd
century B.C. to its fall in 5th
century AD.
•The Renaissance Period
came after ancient Rome fell
but Roman Numerals appear
throughout the history of the
time period.
• Roman civilization
was very
sophisticated,
mathematical
skills were used to
develop the
Coliseum, arches,
Pantheon and
Roman bath
houses.
A Flawed System
• However, their
number system
was flawed…it had
no ZERO (0) and
no single method
of counting above
several thousand
units.
• The fall of the
Roman Empire saw
the introduction
and adoption of
ARABIC
numerals…the
ones we use today.
ZERO
• The
invention
of ZERO
was a
huge leap
forward.
ROMAN NUMERALS TODAY
Practice
•
•
Convert the following to Arabic
Numerals:
XVIII:
• Convert the following to
Roman Numerals:
• 17
•
XXIV:
• 48
•
CCXXXVI:
•
MMDXLV
• 378
• 458
•
•
•
•
18
24
236
2545
•
•
•
•
XVII
XLVIII
CCCLXXVIII
CDLVIII
Class Activity
• Volunteers:
– Two Leaders
– Two Recruiters
– Two Converters
– The class will be split into two groups.
– I will give an Arabic Numeral to be converted
– The people mentioned above will come up with
Roman Numeral and assign each person (student
from class) a number.
– First team to hold up correct Roman Numeral wins!