We are going to learn 2 D and

We are going to learn 2 -D and 3 -D Shapes

Let’s see what do you know?

What am I? I have 2 pairs of equal sides 4 right angles Click here for the Answer

What am I? I’m a shape with no angles. Click here for the Answer

What am I? I have 5 sides. Click here for the Answer

What am I? I have 4 sides all the same I have 4 corners. Click here for the Answer

What am I? I’m a pyramid like 3 -D shape with a circular base. Click here for the Answer

What am I? I’m a long tube with 2 equal sized circular ends. Click here for the Answer

2 -D Shapes

2 -D Shapes Rightangled triangle One of its angles is a right angle (90°) Equilateral triangle 3 equal sides 3 equal angles of 60° Isosceles triangle 2 equal sides 2 equal angles Scalene triangle No equal sides No equal angles

More 2 -D Shapes Pentagon 5 sides. Circle No sides No angles Hexagon have 6 sides

More 2 -D Shapes Trapezoid One pair of parallel sides of different lengths Rectangle 2 pairs of equal sides 4 right angles Square 4 equal sides 4 right angles Rhombus 4 equal sides Opposite sides are parallel Opposite angles are equal Kite 2 pairs of equal No parallel sides. Parallelogram 2 pairs of equal sides Opposite sides are parallel Opposite angles are equal

3 -D Shapes 3 -D means the shape has 3 dimensions; length, width and depth.

3 -D Shapes Sphere Cylinder Cone Long tube with 2 equal sized circular ends. Every point on the surface of the sphere is the same distance from the centre. A pyramid with a circular cross section. The point of the cone is directly above the centre of the circular base.

3 -D Shapes Six faces which are all squares Faces 6 Corners 8 Edges 12 Six faces which are all rectangles Faces 6 Corners 8 Edges 12

3 -D Shapes

3 -D Shapes

Shape Facts Click here to practice some shape facts. • http: //tinyurl. com/56 j 3 q 2

Revision • Click here to learn more about quadrilateral • Click here to learn more about Triangles

Quiz 1. A triangle with three equal sides is called an isosceles triangles an equilateral triangle a scalene triangle

Let us review • http: //tinyurl. com/2 e 3 r 97 Back to Question 1

2. A 2 D shape with 6 sides is called a quadrilateral a pentagon a hexagon

Let us review Click here to learn more about quadrilateral Back to Question 2

3. I have two pairs of equal sides. My opposite sides are parallel. I have no right angles. What am I? Rectangle Parallelogram Kite

Let us review Trapezoid One pair of parallel sides of different lengths Rectangle 2 pairs of equal sides 4 right angles Square 4 equal sides 4 right angles Rhombus 4 equal sides Opposite sides are parallel Opposite angles are equal Back to Question 3 Kite 2 pairs of equal No parallel sides. Parallelogram 2 pairs of equal sides Opposite sides are parallel Opposite angles are equal

4. Which of these shapes has no lines of symmetry? Square Scalene triangle Rectangle

Let’s take another look. Click here to learn more about quadrilateral Back to Question 4

5. I have four equal sides and four right angles. What am I? Square Rectangle Rhombus

Let us review Click here to learn more about quadrilateral Rectangle Rhombus Back to Question 5 Square

6. The distance halfway across a circle is called Circumference Radius Diameter

Let us review Circle No sides No angles Back to Question 6

7. A triangle with two equal angles is called Equilateral triangle Isosceles triangle Scalene triangle

Let us review http: //tinyurl. com/2 e 3 r 97 Back to Question 7

8. A 3 -D tube shape with 2 equal sized circular ends Sphere Circle Cylinder .

Take another look! Sphere Cylinder Back to Question 8

9. A shape with 6 rectangle faces, 8 corners and 12 edges. Cuboid Cube Hexagon

Let us review Hexagon Back to Question 9

Take Another Look http: //www. bbc. co. uk/schools/ks 2 bitesize/maths/tests/s hapes. shtml

Polygon Land • Now, let’s have some fun at polygon Land. • You'll find hundreds of polygons to drag anywhere you want. • Be a creative designer at polygon Land. These are examples of what you can do there. Be sure to read the instructions before you play. Ready? Click here.

Class Activity Find more about 3 -D shapes with your partner. Click on the shapes below and print them then follow the instructions on the sheet.

With a partner, make a chart like the one below and use it to find 3 -D shapes around the classroom. Answer each question about the properties of the object and then see if you can correctly identify and name the object. Number of faces Number of vertices Number of edges Name of shape

Homework • Choose a 3 D shape and design a promotion poster for it. What makes this shape special? What are its properties? What is it used for/where is it seen (for example, packaging, buildings) and what makes it a good shape for this use?

You made it. Hip, Hooray!

Just kidding, this is it ! The End. Click here of you want to take the quiz once more

Welcome to Quiz Home! Question 1 Question 2 Question 3 Question 4 Question 5 Question 6 Question 7 Question 8 Question 9