Objectives:Within the timeframe, the students will be able to:

activate prior knowledge on the characteristics of the types of quadrilaterals;

integrate prior knowledge to the new existing schema;

investigate the similarities and differences of quadrilaterals with the aid of manipulative skills;

construct a schematic diagram of the types of quadrilaterals according to their sides and angles correctly;

show appreciation on the importance of quadrilaterals in real life situation.

GEOMETRY

Pillow Traffic Sign

Television Screen

Monitor

Building Structure

Signage Earrings

Table Lampshade

TYPES OF

QUADRILATERALS

SQUARE

Sides: all sides are congruent.

Angles: all angles are congruent.

RECTANGLE

Sides: 2 sets of sides are congruent.

Angles: all angles are congruent.

PARALLELOGRAM

Sides: 2 sets of sides are congruent.

Angles: 2 sets of angles are congruent.

RHOMBUS

Sides: all sides are congruent.

Angles: all are right angle.

TRAPEZOID

Sides: exactly one pair of sides are parallel.

Similarities of Rhombus and Square

All sides are equal.

When a square is change in its position as like as diamond which looks like a rhombus will be of the same right angles.

Similarities of Square and Rectangle

All interior angles are right angles.

Two pairs of sides are parallel.

Two pairs of sides with equal length.

Diagonals bisect one another.

Similarities of Rectangle and Parallelogram

Opposites sides are parallel.

Both sides are congruent.

Similarities of Parallelogram and Trapezoid

Both are quadrilaterals and both have 2 sides parallel.

Their interior angles add up to 360 degrees (each).

Quadrilaterals

Parallelogram

Trapezoid

RectangleRhombus

Square

What have you learned about quadrilaterals that you have not yet learn from your past lesson?

What can you say about quadrilaterals?

Are they important?

How often do you encounter and make

use of quadrilaterals?

Quiz: ¼ sheet of paperState whether the statement is True or False.1. A square is a rectangle.2. A rectangle is a square.3. A parallelogram is a

trapezoid.4. A square is a rhombus.5. A parallelogram is a rhombus.

Assignment: ½ C.WChoose on type of quadrilateral that relates to your personality. How are they related?