Grade 7 Mathematics

1. INTRODUCTION TO GEOMETRY
MARITES G. ABLAY

2. Direction:
Rearrange the jumbled letter to form a word.
Language Integration
Word Cookies (Number Heads)
O I N P T
POIN
T

3. N E L I
LINE
Direction:
Rearrange the jumbled letter to form a word.

4. Direction:
Rearrange the jumbled letter to form a word.
L A N E P
PLAN
E

5. Direction:
Rearrange the jumbled letter to form a word.
T R Y M E G E O
GEOMETR
Y

6. Direction:
Rearrange the jumbled letter to form a word.
F I N E U N D E
TERMS
UNDEFINED TERMS

7. PICK AND THINK
1.
Geometry
means to
2.
Father of
Modern
Geometry
3.
Example of
spiral pattern
4.
The system of
measuring land
were used by
a.
Ancient
Egypt
b.
Sunflower
Seeds
C. Euclid
d.
measure
the earth

8. Example 2
LINE
Taught Wire
Intersection of a side wall and
ceiling
Laser Light
Example 1
PLANE
Top of the box
Cover of the book
Wall
Example 1
POINT
Tip of a Pen
Star in the Sky
Tip of a needle
Conclusion
A ______ has no dimension , it can be represented by a _____.
A _______ has width but no _________, it can be extended infinitely in _________
direction.
A flat surface that extends infinitely in all ________ suggest the idea of a _______.
Your own example
GRADE 7
MATHEMATICS
BASIC TERMS AND CONCEPTS IN GEOMETRY
UNDEFINED TERMS
STUDENT’S WORKSHEET ON EXAMPLE – CONCLUSION MAP (ECM)

9. Example 1
POINT
Tip of a Pen
Star in the Sky
Tip of a needle
Your own example
Example 2
LINE
Taught Wire
Intersection of a side wall and
ceiling
Laser Light
Example 1
PLANE
Top of the box
Cover of the book
Wall
Example 1
POINT
Tip of a Pen
Star in the Sky
Tip of a needle
Conclusion
A point has no dimension , it can be represented by a dot.
A line has width but no thickness, it can be extended infinitely in opposite
direction.
A flat surface that extends infinitely in all direction suggest the idea of a
plane.
Your own example
Example 2
LINE
Taught Wire
Intersection of a side wall and
ceiling
Laser Light
Example 1
PLANE
Top of the box
Cover of the book
Wall
GRADE 7
MATHEMATICS
BASIC TERMS AND CONCEPTS IN GEOMETRY
UNDEFINED TERMS
TEACHER’S GUIDE ON EXAMPLE – CONCLUSION MAP (ECM)

10. Mini Murder Mystery
WHO
One of the following five (5) people is a murderer. Each
person has given an answer. Four people have given correct
answers while one has not. The person who has given the
incorrect answer is the culprit.
A
line
is
The Mad scientist says It has length
and width but no thickness. The Math Teacher says It extends
infinitely in opposite directions.
The Gardener says Its length is
infinite.
The astronauts says the says It is
made up of a set of continuous
points no gaps in between.
The Vendors says It has no
thickness.
WHO IS THE
CULPRIT?
__________
Mini Murder Mystery
Where
The murder was committed at one of the tourist hotspots in Manila.
Which one it happened where the answer is true?
Its is a flat surface that
extend infinitely along the
length and width.
It has length and width but
no thickness.
RIZAL PARK
point
OCEAN PARK
line
MANILA ZOO
plane
STAR CITY
earth
NATIONAL MUSEUM
universe
WHERE DID IT
HAPPENED?
___________

11. Mini Murder Mystery
When
When it happened where the answer is true?
A point
MONDAY
Has
dimension
TUESDAY
Cannot be
modeled by a
dot.
WEDNESDAY
Has no
length, width
And height
THURSDAY
It can be
represent by
string of guitar.
FRIDAY
It cannot
occupies
space.
WHEN DID IT
HAPPENED?
___________

12. What geometric idea is pictured by each of the following?
1. Tip of a chopstick
2. Billboard
3. Strand of your hair
4. Frying Pan
5. Corner of a room
6. Edge of a ruler
7. Tip of a leaf
8. Page of a newspaper
9. Barbecue stick
10. A mark made by a pen
11. String of a guitar
12. Parking lot
13. Mole
14. Mirror
15. Crease of a folded paper.

13. Thank you for listening.