The document explains basic geometrical shapes, emphasizing their presence in everyday objects and their formation through points, lines, and dimensions. It distinguishes between two-dimensional shapes, such as squares and circles, and three-dimensional shapes, like cubes and spheres, highlighting their characteristics and measurements. The study of geometry is essential for developing foundational skills and is widely used in various professions, including architecture and carpentry.

1. Basic Geometrical
Shapes

2. Look around you, can you see
different shapes from different
objects? Everything you see
has its own shape. Look at
the window? What shape do
you see? At your door or your
computer monitor. Shapes are
everywhere. But how these
shapes are formed?

3. Learning Objectives:
• Know how shapes are formed
• Identify two-dimensional figures
• Identify three-dimensional figures

4. Geometry is a branch of
mathematics that studies
about points, lines, shapes
and dimensions of things.
We study geometry for us
to develop foundational
skills such as thinking
skills, logic and analysis.
Geometry

5. Almost everywhere you
find geometry. Look at
your house, carpenters,
engineers and architects
all use geometry to build
awesome houses. Even in
your toys, toy makers use
geometry to manufacture
safe and fun toys that you
can enjoy.

10. How shapes are
formed?

11. A point is the most
fundamental object in
geometry and is
represented by a dot. A
dot is a small rounded
mark or spot.
Point

12. If you put several points
together, you will start to
form a line. Lines are
points that is connected
extending infinitely far in
two directions. Lines can
be straight or curve.
Line

13. If you combine some
lines, you may form a
shape. It is considered a
shape when a space is
enclosed by an outline.
Shape

14. If you combine some
lines, you may form a
shape. It is considered a
shape when a space is
enclosed by an outline.
Shape

15. 2-dimensional shape
3-dimensional shape
Shape

16. Two-dimensional figures
are closed shapes formed
using a straight or a
curve line. It can be
referred to as a plane. A
plane is a flat surface
with no thickness. It can
be measured with length
and width.
2-dimensional
Shape

17. A square is a 2D shape
with four sides and four
corners.
All sides of a square are
equal in length.
Square

18. A circle is a 2D shape
with no corner.
Circle

19. Triangles have three
sides and three corners.
Triangle

20. Rectangles also have
four sides and four
corners.
But unlike the square,
rectangles have 2 pairs
of equal sides.
Rectangle

21. Ovals are like circles.
The difference is that
they are
elongated.
Oval

22. It is a 2D shape with
four sides. Same as the
square,
diamond's side is all
equal, but it has 2 pairs
of equal angles
(corners).
Diamond

23. Three-dimensional shapes
are formed with combined
lines and planes. It has
thickness and can be
measured with length,
height and width. 3D
shapes have 3 parts: the
faces, edges and corners.
3-dimensional
Shape

24. Cubes are 3D figures
bounded by six square
faces.
It has 8 corners and 12
edges.
Cube

25. A 3D figures whose two
end faces are similar,
equal
and parallel. Prisms can
be classified according
to the shape
of their opposite faces.
Prism

26. A pyramid has a
polygonal base and an
apex. They can be
classified according to
the shape of their base.
Pyramid
Apex Polygonal
Bases

27. Cylinder is a 3D shape
that have 2 opposite
Circular bases and a
curved surface.
Cylinder
circular
bases
curved
surface

28. Cone is like a
combination of a
pyramid and a
cylinder. It has a
circular base, a
curved surface and
an apex.
Cone
circular
base
curved
surface
apex

29. Spheres are
geometrical object in
three-dimensional
space that is
completely round like
a ball. They have a
curved surface.
Sphere
curved
surface