Final Project in ICT. Submitted by: Lorelyn M. Ramos. Overview. Goal of the lessons : To find the area of a square and rectangle. Pedagogical approach : Constructivism Skills/knowledge : Identify rectangle and square in the classroom.
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Submitted by: Lorelyn M. Ramos
Goal of the lessons : To find the area of a square and rectangle.
Pedagogical approach : Constructivism
Kinds of technology tools:
1. Identify square and rectangle in the classroom.
2. Relate the characteristics of different figureswith
the use of tangram.
3. Visualized and understand the concept of area.
4. Derive the formula in finding the area of square
5. Find the area of a figure in square units.
6. Solve word problems.
Finding the Area of a
Square and Rectangle
This is a black board.
What is the shape of a black board?
Can you give me more example an a rectangle?
(door, window, table etc.)
This is a picture frame.
What is the shape of a picture frame?
Can you give me more example an a square?
(frame, ceiling, chart, etc.)
What have you noticed with a rectangle?
- It has two pairs of equal sides
What have you noticed with a square?
- It has four equal sides
Compare a rectangle and a square.
- Rectangle has two pairs of equal sides while
a square has four equal sides
Solve the following using a geo board.
1. a. Make a 4 x 4 square in a geo board.
b. Let the pupils count the number of
square inside the square.
(16 square units)
b. Let the pupils count the number of
square inside a rectangle.
(30 square units)
( For computer based geo board please click the link below)
Let the pupils watch the following
Finding the area of a Square
Finding the area of a Rectangle
Constructing Your Own Set of Tangrams
a rectangular piece of paper suitable for folding
a pair of scissors
a ruler (optional)
A complete set of tangrams consists of seven pieces:
a small squaretwo small congruent trianglestwo large congruent trianglesa medium-size trianglea parallelogram
You can make your own set of tangrams from a single piece of paper.
Just follow these simple steps:
1. Fold a rectangular piece of paper 2. Cut the square into two triangles.
so that a square is formed.
Cut off the extra flap.
3. Take one triangle and fold it in half.
Cut the triangle along the fold
into two smaller triangles.
4. Take the other triangle and 5. Fold the trapezoid in half and fold again.
crease it in the middle. Cut along both folds.
Fold the corner of the triangle
opposite the crease and cut.
6. Fold the remaining small trapezoid and cut it in two.
Tangrams are a puzzle that help develop spatial-visualization skills,
but they may also be used to introduce or reinforce geometrical
concepts such as congruency, similarity, symmetry, and so forth.
This unit for grades 4 through 6 uses tangrams to compute the
area of polygons without formulas. In the process of doing so,
the terms congruent and similar are introduced.
2. Make a rectangle with the parallelogram and the two small congruent triangles. What is the area of this rectangle? How do you know? Sketch the rectangle in your notebook and record its area.
Finding the Area of Square and Rectangle
Find the area of the following objects below.
1 m 3 m
2 m 30cm 2m
80 cm 2m
Solve the following word problem:
A square lot measure 14 meters in one side.
What is the area of the lot?
A rectangular garden has a width of 20 meters and a length of 35 meters. What is the area of the garden?
A quadrangle has a perimeter of 80 meters. If the shorter side of the quadrangle measures 20 meters. What is the area of the quadrangle?
A floor area measures 15 meters by 12 meters. How many tiles that measures 1 meter by 1 meter is needed to cover the whole floor area?
A rectangular measures 18 meters by 9 meters.
What is the area?