# Geometric shapes Video 1 Geometric shapes prsentation Video

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Geometric shapes

Video 1: Geometric shapes- présentation Video 2: 2 D Geometric shapes Video 3: 3 D Geometric shapes Video 4: 2 D shapes - quiz Video 5: 3 D shapes - quiz Video 6: Paper folding: a penguin

Video 1 : Geometric shapes presentation There are 2 main types of geometric shapes: Shapes in 2 dimensions (2 D) and shapes in 3 dimensions (3 D) 2 D shapes: A 2 D shape is flat (it’s not solid) For example: - a square 3 D shapes : A 3 D shape is made of different 2 D shapes. A 3 D shape is not flat, it’s solid For example: - a cube home

Video 2 : (1) Geometric shapes in 2 dimensions (2 D) 2 dimensional shapes are flat. Here are some examples: - a circle - a polygon What is a polygon? It’s a geometric shape drawn with a ruler. (It does not have a curve). It’s a complete shape. home

Video 2 : (2) Here are some examples of polygons: • a triangle – – – • - - A triangle has 3 sides. A right-angled triangle has 3 sides too. A right-angled triangle has only one right angle. a square – – A square has 4 identical sides. A square has 4 right angles. a rectangle – – A rectangle has 2 identical long sides and 2 identical small sides. A rectangle has 4 right angles. a trapezium / trapezoid – A trapezium has 4 sides, with 2 parallel sides. home

Video 2 : (3) • a pentagon – A pentagon has 5 identical sides. • a hexagon – A hexagon has 6 identical sides. – The hexagon, is also a nickname for France’s because of its shape. home

Video 3 : (1) Geometric shapes in 3 dimensions (3 D) A 3 D shape is made of several 2 D shapes. A 3 dimensional shape is not flat, it’s solid! Here are some examples: - a cube A cube is made of 6 identical squares. - a pyramid A pyramid is made of 4 identical triangles and one square. home

Video 3 : (2) - a cuboid A cuboid is made of 6 rectangles. - a prism A prism is made of 2 triangles and 3 rectangles. - a cylinder A cylinder is made of a rectangle and 2 circles. - a sphere A sphere is the 3 d equivalent of a circle. It’s a round solid object. home

2 d shapes Quiz Video 4 : (1) What is it? Look carefully at the geometric shape and answer … What is it? It’s a triangle. What is it? It’s a square. What is it? It’s a trapezium / trapezoid. What is it? It’s a circle. home

Video 4 : (2) 2 d shapes Quiz What is it? It’s a pentagon. What is it? It’s a rectangle. What is it? It’s a hexagon. home

3 d shapes Quiz Video 5 : (1) What is it? Look carefully at the geometric shape and answer … What is it? It’s a cube. What is it? It’s a prism. What is it? It’s a pyramid. What is it? It’s a cuboid. What is it? It’s a sphere. What is it? It’s a cylinder. home

Video 6 : Instructions (1) Paper folding activity: a penguin Instructions : 1. Take a blue sheet of paper and cut-out a large square. 2. Make a diagonal fold across the square and again in 2 (diagonally) making 4 triangles. Open the square back out in to a diamond shape. 3. Take the point of the bottom and fold it inwards, making a new triangle. 4. Again take the same point but fold it outwards, making another new triangle. 5. Turn the folded paper over. 6. Take the left and right hand sides and make 2 vertical folds inwards so each side overlaps in the centre. home

Video 6 : (2) 7. For each fold you have just made, take one side and fold it back making a vertical fold. Repeat on the other side. 8. Take the point at the very top and fold it down to make a small triangle. 9. Turn the folded paper over. 10. Cut-out a small triangle (for the beak) and colour the triangle yellow. Then glue the yellow triangle on to the penguin’s beak, the fold is ready and waiting for it. Draw on some eyes above the beak. There you are - a beautiful penguin! Well done! Decide now - What’s your penguin’s name and where will it live? home

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