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Develop algebra through geometry and shape.
Learning outcomes We are learning to…. Develop algebra through geometry and shape.
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Shapes built from squares
x x Area = 2x x x x Area = 3x
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x x x x Area = 4x There are five different TETROMINOES…..
Shapes built from squares There are five different TETROMINOES….. x x x x Area = 4x
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Tetrominoes Area = 4x
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Use 5 squares to find as many PENTOMINOES as you can.
x x x x x Area = 5x
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Pentominoes Area = 5x Total = 12
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Pentominoes
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Hexominoes Area = 6x Total = 35
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Heptominoes Area = 7x Total = 108
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Keep going… Squares Total 2 domino 1 3 tromino 4 tetromino 5 pentomino
12 6 hexomino 35 7 heptomino 108 8 octomino 369 9 nonomino 1,285 10 decomino 4,655 11 undecomino 17,073 dodecomino 63,600
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Introducing QUADRANTS
Area = y Area = x y x 3cm 3cm
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Drawing QUADRANTS y 3cm 3cm
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Create two different shapes to show the area 2y
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Create three different shapes to show the area 3y
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Try and find as many shapes that make 4y
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Animal quadrants!
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The golden spiral! Quadrants inside squares of size 1, 1, 2, 3, 5, 8, 13, 21 and 34
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Squares and quadrants (a) x + y (b) 3x + y (c) x + 3y (d) 4x + 3y
Draw shapes that represent; (a) x + y (b) 3x + y (c) x + 3y (d) 4x + 3y
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Squares and quadrants
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Squares and quadrants
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Squares and quadrants
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How many different ways can you find of writing the areas of these shapes?
b) c) e) d) f)
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Squares and quadrants
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Squares and quadrants
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Using a new tile Work out the area of the shape
Use three colours and label each separate tile. One has been done for you. Work out the area of the shape
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Using a new tile Work out the area of the shape
Use three colours and label each separate tile. One has been done for you. Work out the area of the shape
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Work out the area of these shapes
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Find these areas Shape 3 Shape 1 Shape 2 Shape 4
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These two shapes have the same area. True!
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