geometry - 2d shapes.ppt

BAHAN PEMBELAJARAN KENDIRI

KRT 3013

TEKNOLOGI MAKLUMAT SEKOLAH RENDAH

KRT 3013

TEKNOLOGI MAKLUMAT SEKOLAH RENDAH

SAIDATUN ATIKAH SAID

PPG / 20286 / 11

820104 – 02 - 5346

SAIDATUN ATIKAH SAID

PPG / 20286 / 11

820104 – 02 - 5346

SAIDATUN ATIKAH SAID

PPG / 20286 / 11

820104 – 02 - 5346

FUN

WITH

2D SHAPES

A shape is the outer form of an object or figure such as circle, rectangle, square, triangle.

There are all kinds of shapes all around us – in the sky, in the sea, on the ground, and in our homes

Knowledge about shapes is important to design and provides structure for creative thinking .

LEARNING OBJECTIVES

The children will recognize the shapes circle, square, rectangle, and triangle by sight. The children will practice

drawing circles, squares, rectangles, and triangles.

Children will recognize different shapes in nature like leaves,flowers,fruits etc.

All these will increase children’s interest towards Mathematics.

Children realize that shapes make life brighter.

Today we are going to learn about some 2D shapes...

Two-dimensional Shapes (2D)

• These shapes are flat and can only be drawn on paper.

• They have two dimensions – length and width.

• They are sometimes called plane shapes.

I am a flat shape.

I have 1 curved side.

I have no corners.

What shape am I?

I’m a circle!

I am a flat shape.

I have 1 curved side.

I have no corners.

What shape am I?I am a oval!

I am a flat shape.I have 3 straight sides.

I have 3 corners.

What shape am I?

I’m a triangle!

I am a flat shape.I have 4 straight sides.

I have 4 corners.All my sides are the same length.

What shape am I?I’m a square!

I am a flat shape.I have 4 straight sides.

I have 4 corners.I have two short sides and two long sides.

What shape am I?I’m an oblong!

Very good!!! Now count the number of squares here:

If you found 4 squares, you are correct!!!

Great!!! Now count the number of triangles:

If you found 5 triangles, you are correct!!!

Wonderful!!! Now count the number of circles...

If you found 6 circles, you are correct!!!

Good job!!! Now count the number of rectangles...

If you found 4 rectangles, you are correct!!!

SQUARE

TRIANGLE

RECTANGLE

CIRCLE

OVAL