3. The students were informed about the plan
of work, prior to the commencement of
research.
An introductory worksheet was given to
students to judge their knowledge about the
topic.
INTROduCTORy wORksHeeT
6. Introduction to Sum of the
Boundary:
Perimeter• Square
• Rectangle
• Different Shapes
7.
8. Perimeter of a square was
introduced through an
activity.
Students were given the cut
outs of square (with
different measures) and
were asked to find the sum
of the boundary.
10. Students calculated it by adding all
the sides and further with more
practice , derived the conclusion:
PERIMETER of a SQUARE can be
calculated by repeated addition
and hence the formula
Perimeter of a square=4 x side
12. Students enjoyed the activity and
used their analytical skills to derive
the formula and understood the
concept. The result of this was:
13. Perimeter of a rectangle
this was also introduced with an
activity, similar to the previous
activity.
Students were given the rectangular
shapes to find its perimeter.
LENGTH
B
R
E
A
D
T
H
20. The concept of area was introduced with the
class discussion and observation of students.
Various objects were kept inside class early in
the morning ( before students arrive). They were
surprised to see lots of things in the class and
the surface occupied by those things.
The surface occupied by those objects is the
area occupied by the various objects in the
class.
21. A look at the Graphical
representation of concept of area.
1 x 6 = 6
1 x 6 = 6
1 x 6 = 6
1 x 6 = 6
1 x 6 = 6
5 times
6 repeated 5 times
= 6 x 5
= 30 sq. units
22. AREA OF A SQUARE
1 X 5 = 5
1 X 5 = 5
1 X 5 = 5
1 X 5 = 5
1 X 5 = 5
5 TIMES
5 TIMES 5
= 5 X 5 = 25 sq. units
