Topicm2ed63c33b67f8229_1528449000663_0Topic

Writing and reading numbers in the Roman systemroman systemRoman system

Levelm2ed63c33b67f8229_1528449084556_0Level

Second

Core curriculumm2ed63c33b67f8229_1528449076687_0Core curriculum

I. Natural numbers in the decimal positional system. The student:
5) converts numbers in the range up to 3,000 presented in the Roman systemRoman systemRoman system into the decimal system, and vice versa.

Timingm2ed63c33b67f8229_1528449068082_0Timing

45 minutes

General objectivem2ed63c33b67f8229_1528449523725_0General objective

Reading and interpreting data presented in various forms and its processing.

Specific objectivesm2ed63c33b67f8229_1528449552113_0Specific objectives

1) Converting Roman numeralsRoman numeralsRoman numerals into decimals.

2) Converting decimals into Roman numeralsRoman numeralsRoman numerals.

3) Communicating in English, developing mathematics skills, scientific, technical and IT competences; developing learning skills.

Learning outcomesm2ed63c33b67f8229_1528450430307_0Learning outcomes

The student:

- converts Roman numeralsRoman numeralsRoman numerals into decimals,

- converts decimals into Roman numeralsRoman numeralsRoman numerals.

Methodsm2ed63c33b67f8229_1528449534267_0Methods

1) Flipped Classroom.

2) Situational analysis.

Forms of workm2ed63c33b67f8229_1528449514617_0Forms of work

1) Whole class work.

2) Group work.

Lesson stages

Introductionm2ed63c33b67f8229_1528450127855_0Introduction

Students will work with the flipped class room method.
Prior to the lesson, at home, they review information about the Roman systemRoman systemRoman system.

Procedurem2ed63c33b67f8229_1528446435040_0Procedure

The teacher divides the students into three groups. The task of each group is to present information prepared at home.

Task for the groups.
Based on the information prepared earlier, prepare a poster showing the symbols and rules used to present numbers in the Roman systemRoman systemRoman system.
Groups present the results of their work. The following information should appear on the posters:

Roman number system
-  To present numbers in the Roman system, we use seven numerals:
I - 1, V - 5, X - 10, L - 50, C - 100, D - 500, M - 1000.
-  To write a number, we use three identical symbols maximum:
I, X, C, M.
-  We do not write two identical symbols from:
V, L, D.
-  If the symbols appear in descending order or are equal, then we will add the corresponding symbols to these symbols. Example:
VI – 6, MMM – 3000, DC – 600.
-  If there is a symbol for a smaller number before the symbol denoting a larger number, then the smaller one is subtracted from the larger value. Example IV – 4, IX – 9, CD – 400.
m2ed63c33b67f8229_1527752263647_0Roman number system
-  To present numbers in the Roman system, we use seven numerals:
I - 1, V - 5, X - 10, L - 50, C - 100, D - 500, M - 1000.
-  To write a number, we use three identical symbols maximum:
I, X, C, M.
-  We do not write two identical symbols from:
V, L, D.
-  If the symbols appear in descending order or are equal, then we will add the corresponding symbols to these symbols. Example:
VI – 6, MMM – 3000, DC – 600.
-  If there is a symbol for a smaller number before the symbol denoting a larger number, then the smaller one is subtracted from the larger value. Example IV – 4, IX – 9, CD – 400.

The teacher summarizes and evaluates the work of groups.

Students work individually using computers. Their task is to combine pairs of numbers written with Arabic numerals and equal numbers presented in the Roman systemRoman systemRoman system. The teacher determines the range from which the numbers in the task are drawn.

- Level I: from 0 to 100

- Level II: from 0 to 1000

-  Level II: from 0 to 3000

[Geogebra applet]

The teacher divides the students into groups. On the basis of previously prepared and discussed information, students solve tasks. Their task is to provide correct solutions in the shortest possible time.

Task
Present the dates in the Roman systemRoman systemRoman system.

a) 1410 - battle of Grunwald

b) 1490 - Władysław Jagiellończyk becomes the king of Hungary

c) 1768 - the discovery of Australia by James Cook

d) 1794 - battle of Racławice

e) 1939 - the outbreak of World War II

Task
Read the dates written in the Roman systemRoman systemRoman system. And write it in the Arabic systemArabic systemArabic system.

a) MCMLXXVIII - the election of Karol Wojtyła as the Pope

b) CMLXVI - baptism of Poland

c) MCLXIII - construction of the Notre Dame cathedral in Paris began

d) MDCXXXI - the construction of the Palace of Versailles began

e) MCMXXVIII - discovery of penicillin by Alexander Fleming

Task
What number should be put in place of x? Write the answer using Roman numeralsRoman numeralsRoman numerals.

a) CCXXI + x = CD

b) x - CMII = MCXII

c) IV • CCLI = x

d) MMDCVIII: x = DCLII

Task
Compare the numbers. Put<, > or = in the blank space ___.

a) DCLXXV ___ 625

b) 2323 ___ MMCCXXXIII

c) CCXLVI ___ CDXCIV

d) XLV ___ MMM

The teacher summarizes and evaluates the work of the groups. Students from the group who correctly solved the tasks in the shortest time, receive grades for activity.

Task for volunteers
Write in the Roman systemRoman systemRoman system the numbers determining the last four leap years.

Lesson summarym2ed63c33b67f8229_1528450119332_0Lesson summary

Students do revision tasks.

They formulate conclusions to remember:

-  To present numbers in the Roman systemRoman systemRoman system, we use seven numerals:
I - 1, V - 5, X - 10, L - 50, C - 100, D - 500, M - 1000.

-  To write a number, we use three identical symbols maximum: I, X, C, M.

-  We do not write two identical symbols from each other: V, L, D.

-  If the symbols appear in descending order or are equal, then we will add the corresponding symbols to these symbols.

-  If there is a symbol for a smaller number before the symbol denoting a larger number, then the smaller one is subtracted from the larger value.

-  There may be only one character for a smaller number before the larger number.

Selected words and expressions used in the lesson plan

Arabic SystemArabic systemArabic System

Roman numbersRoman numbersRoman numbers

Roman numeralsRoman numeralsRoman numerals

Roman systemRoman systemRoman system

rules for presenting roman numbersrules for presenting Roman numbersrules for presenting roman numbers

m2ed63c33b67f8229_1527752263647_0
m2ed63c33b67f8229_1527752256679_0
m2ed63c33b67f8229_1527712094602_0
m2ed63c33b67f8229_1528449000663_0
m2ed63c33b67f8229_1528449084556_0
m2ed63c33b67f8229_1528449076687_0
m2ed63c33b67f8229_1528449068082_0
m2ed63c33b67f8229_1528449523725_0
m2ed63c33b67f8229_1528449552113_0
m2ed63c33b67f8229_1528450430307_0
m2ed63c33b67f8229_1528449534267_0
m2ed63c33b67f8229_1528449514617_0
m2ed63c33b67f8229_1528450135461_0
m2ed63c33b67f8229_1528450127855_0
m2ed63c33b67f8229_1528446435040_0
m2ed63c33b67f8229_1528450119332_0
Roman system1
Roman system

system rzymski zapisu liczb

Rkn74pvdDFFy31
wymowa w języku angielskim: Roman system
Roman numerals1
Roman numerals

znaki rzymskie – znaki : I, V, X, L, C, D, M

R1Ak84c0tA7B61
wymowa w języku angielskim: roman numerals
Arabic system1
Arabic system

system arabski zapisu liczb

RKUdq3BNZaYWw1
wymowa w języku angielskim: Arabic system
Roman numbers1
Roman numbers

liczby rzymskie – do zapisywania liczb w systemie rzymskim używamy siedmiu znaków:
I – 1, V – 5, X – 10, L – 50, C – 100, D – 500, M – 1000

R2wuVCLVqTs9M1
wymowa w języku angielskim: Roman numbers
rules for presenting Roman numbers1
rules for presenting Roman numbers

zasady zapisywania liczb w systemie rzymskim – do zapisu liczby używamy co najwyżej trzech takich samych symboli spośród: I, X, C, M ; nie piszemy obok siebie dwóch takich samych symboli spośród: V, L, D.

RqHjR1KqBemnc1
wymowa w języku angielskim: rules for presenting Roman numbers