Why is a timeline
helpful when
comprehending
historical events?
Timeline
Comparing Number lines and
Timelines
by Mrs. Smith
Comparing Number lines and
Timelines
Number line
Timeline
Definition
(Positive number on a Number line)
• Positive number – a number
greater than zero.
0 1 2 3 4 5 6
Comparing Number lines and
Timelines
Number line
• Positive number – a number
greater than zero.
Timeline
Definition
(Negative number on a Number line)
• Negative number – a number
less than zero.
-6 -5 -4 -3 -2 -1 0
Comparing Number lines and
Timelines
Number line
• Positive number – a number
greater than zero.
• Negative number – a
number less than zero.
Timeline
Definition
(Numbers AFTER 0 on a Timeline)
• A.D. – Anno Domini “in the year of our lord”
• C.E. – Common Era
0 1 2 3 4 5 6
A.D.
C.E
Comparing Number lines and
Timelines
Number line
• Positive number – a number
greater than zero.
• Negative number – a
number less than zero.
Timeline
• Numbers AFTER 0 on a
Timeline
– A.D. – Anno Domini “in the
year of our lord”
– C.E. – Common Era
Definition
(Numbers BEFORE 0 on a Timeline)
• B.C. – Before Christ
• B.C.E. – Before Common Era
6 5 4 3 2 1 0
B.C.
B.C.E.
Comparing Number lines and
Timelines
Number line
• Positive number – a number
greater than zero.
• Negative number – a
number less than zero.
Timeline
• Numbers AFTER 0 on a
Timeline
– A.D. – Anno Domini “in the
year of our lord”
– C.E. – Common Era
• Numbers BEFORE 0 on a
Timeline
– B.C. – Before Christ
– B.C.E. – Before Common Era
Definition
(Number line)
• Opposite Numbers – numbers
that are the same distance from
zero in the opposite direction
-6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6
Comparing Number lines and
Timelines
Number line
• Positive number – a number
greater than zero.
• Negative number – a number
less than zero.
• Opposite Numbers – numbers
that are the same distance
from zero in the opposite
direction
Timeline
• Numbers AFTER 0 on a
Timeline
– A.D. – Anno Domini “in the year
of our lord”
– C.E. – Common Era
• Numbers BEFORE 0 on a
Timeline
– B.C. – Before Christ
– B.C.E. – Before Common Era
Definition
(Timeline)
• Opposite Years – years that are
the same distance from zero in
the opposite direction
6 5 43 2 1 0 1 2 3 4 5 6
B.C. or B.C.E.
A.D. or C.E.
Comparing Number lines and Timelines
Number line
• Positive number – a number
greater than zero.
• Negative number – a number
less than zero.
• Opposite Numbers – numbers
that are the same distance
from zero in the opposite
direction
Timeline
• Numbers AFTER 0 on a
Timeline
– A.D. – Anno Domini “in the year
of our lord”
– C.E. – Common Era
• Numbers BEFORE 0 on a
Timeline
– B.C. – Before Christ
– B.C.E. – Before Common Era
• Opposite Years – years that are
the same distance from zero in
the opposite direction.
Review Timeline Labeling
• Years/Dates – are labeled with either
B.C./B.C.E. or A.D./C.E. after the
date is written/displayed.
• These labels will tell you if the date is
before or after the zero.
767 B.C.
767 B.C.E.
0
0
767 A.D.
767 C.E.
Here is an example of how to
create your timeline:
0
2006 AD
1359 BC
21,000 BCE
734 BCE
1194 BC
730 CE
0
1903 CE
1592 AD
2006 AD
Here is your finished timeline!
1359 BC
21,000 BCE
734 BCE
1194 BC
730 CE
0
1903 CE
1592 AD
2006 AD
Lets Practice Making a Timeline
• With your group you will;
– Draw a blank timeline on your piece of butcher
paper.
– Place the date cards in order on the blank
timeline.
– Rotate to the next group and place those date
cards in the right order.