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Multiply using the grid method. WUPA
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Learning Objective Read and plot coordinates in all quadrants
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DEFINITION Grid – A pattern of horizontal and vertical lines, usually forming squares.
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DEFINITION Coordinate grid – a used to locate a point by its distances from 2 intersecting straight lines. 1 3 2 4 5 0 6 1234506
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DEFINITION x axis – a horizontal number line on a coordinate grid. 1234506 x
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HINT x ‘is a cross’ (across ) 1234506 x
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DEFINITION y axis – a vertical number line on a coordinate grid. 1 2 3 4 5 0 6 y
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DEFINITION Coordinates – an ordered pair of numbers that give the location of a point on a grid. (3, 4) 1 2 3 4 5 0 6 1234506 (3,4)
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HINT The first number is always the x or first letter in the alphabet. The second number is always the y the second letter in the alphabet. 1 3 2 4 5 0 6 1234506 (3,4)
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HOW TO PLOT ORDERED PAIRS Step 1 – Always find the x value first, moving horizontally 1 3 2 4 5 0 6 1234506 (2, 3) y x
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HOW TO PLOT ORDERED PAIRS Step 2 – Starting from your new position find the y value by moving vertically 1 3 2 4 5 0 6 1234506 (2, 3) y x
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HOW TO FIND ORDERED PAIRS Step 1 – Find how far over horizontally the point is by counting to the right 1 3 2 4 5 0 6 1234506 (5, 4) y x
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HOW TO FIND ORDERED PAIRS Step 2 – Now count how far vertically the point is by counting up 1 3 2 4 5 0 6 1234506 (5,4) y x
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WHAT IS THE ORDERED PAIR? 1 3 2 4 5 0 6 1234506 (3,5) y x
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WHAT IS THE ORDERED PAIR? 1 3 2 4 5 0 6 1234506 (2,6) y x
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WHAT IS THE ORDERED PAIR? 1 3 2 4 5 0 6 1234506 (4,0) y x
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WHAT IS THE ORDERED PAIR? 1 3 2 4 5 0 6 1234506 (0,5) y x
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WHAT IS THE ORDERED PAIR? 1 3 2 4 5 0 6 1234506 (1,1) y x
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Find a Percentage of a number WUPA
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Learning Objective Read and plot coordinates in all quadrants
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* When the number lines are extended into the negative number lines you add 3 more quadrants to the coordinate grid. -2 0 1 2 -3 3 -2012-33 y x
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* If the x is negative you move to the left of the 0. -2 0 1 2 -3 3 -2012-33 x = -2 y x
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* If the y is negative you move down below the zero. -2 0 1 2 -3 3 -2012-33 y = -3 y x
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* Step 1 - Plot the x number first moving to the left when the number is negative. -2 0 1 2 -3 3 -2012-33 (-3, -2) y x
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* Step 2 - Plot the y number moving from your new position down 2 when the number is negative. -2 0 1 2 -3 3 -2012-33 (-3, -2) y x
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* When x is positive and y is negative, plot the ordered pair in this manner. -2 0 1 2 -3 3 -2012-33 (2, -2) y x
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* When x is negative and y is positive, plot the ordered pair in this manner. -2 0 1 2 -3 3 -2012-33 (-2, 2) y x
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-2 0 1 2 -3 3 -2012-33 (-3, -3) y x
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-2 0 1 2 -3 3 -2012-33 (-1, 2) y x
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-2 0 1 2 -3 3 -2012-33 (1, -1) y x
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-2 0 1 2 -3 3 -2012-33 (2, -2) y x
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-2 0 1 2 -3 3 -2012-33 (-3, -2) y x
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Mr D. Pay33 0 1234567 8 910 -9-8 -7 -6 -5 -4-3-2 -10 x y 1 2 3 4 5 6 7 8 9 10 -2 -3 -4 -5 -6 -7 -8 -9 -10 Coordinates Keywords & Rules FIRST QUADRANT Y Axis and positioning vertical Use brackets (?,?) and remember X first Y next ORIGIN (4,8) SECOND QUADRANT THIRD QUADRANT FOURTH QUADRANT X Axis and positioning horizontal
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YOUR TASK! Whole class investigation: Pairs plot the following coordinates on grids: ( -3, -7), (3,5), (0, -1), (1, 1), (-2, -5), (5,9), (-1, -3), (2,3). Join al l the points, what do you notice? Choose three of the points and add 3 to each of the x coordinates. Chose these three new points to each other using a different coloured pencil. Try subtracting three and drawing the new points from x coordinates. What happens if you subtract three from the y and x coordinates?
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Mr D. Pay 36 0 1234567 8 910 -9-8 -7 -6 -5 -4-3-2 -10 x y 1 2 3 4 5 6 7 8 9 10 -2 -3 -4 -5 -6 -7 -8 -9 -10 Coordinates in 4 Quadrants. a b c d a b c a b c d a b c d a b c d a b c a b c d e a b c d 1 2 3 4 5 6 8 What are the vertex coordinates of each shape? d 7 8,10 10,7 8,4 2,7 1,4 6,4 1,0 7,-1 10,-1 10,-6 7,-6 4,-3 6,-9 2,-9 -2,6 -1,2 -6,2 -5,6 -8,9 -5,9 -7,4 -10,4 -10,-1-6,-1 -6,-5 -10,-5 -3,-5 0,-6 -1,-10 -4,-10 -6,-8
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WUPA Find fractions of numbers
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Learning Objective Recognise parallel and perpendicular faces and edges on 3.D shapes Rehearse the terms polyhedron, tetrahedron and begin to use dodecahedron.
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What is the difference between a 2D shape and 3D shape? Which 3D shapes can you name?
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CUBE Can you think of any objects which are the shape of a cube?
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CUBOID Can you think of any objects which are the shape of a cuboid?
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SPHERE Can you think of any objects which are shape of a sphere?
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CONE Can you think of any objects which are the shape of a cone?
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CYLINDER Can you think of any objects which are the shape of a cylinder?
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SQUARE BASED PYRAMID
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TRIANGULAR PRISM
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What is a Polyhedron? Polyhedrons Non-Polyhedrons
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Do you notice a difference? Polyhedrons Non-Polyhedrons
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Polyhedrons A solid that is bounded by polygons with straight meeting faces. There are two main types of solids: Prisms andPyramids
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Face The polygons that make up the sides of a polyhedron
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Edge A line segment formed by the intersection of 2 faces
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Vertex A point where 3 or more edges meet
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Name the Polyhedron and find the number of Faces, Vertices, and Edges a. b.c.
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a. b.c. F = 5 V = 5 E = 8 F = 5 V = 6 E = 9 F = 8 V = 12 E = 18
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a. b.c. F = 5 V = 5 E = 8 F = 5 V = 6 E = 9 F = 8 V = 12 E = 18 Does anybody see a pattern?
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Euler’s Theorem F + V = E + 2
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Euler’s Theorem F + V = E + 2 Example:
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Euler’s Theorem F + V = E + 2 Example: F = 6, V = 8, E = 12
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Euler’s Theorem F + V = E + 2 Example: F = 6, V = 8, E = 12 6 + 8 = 12 +2
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Euler’s Theorem F + V = E + 2 Example: F = 6, V = 8, E = 12 6 + 8 = 12 +2 14 = 14
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Example: Use Euler’s Theorem to find the value of n Faces: 5 Vertices: n Edges: 8
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Example: Use Euler’s Theorem to find the value of n Faces: 5 Vertices: n Edges: 8 F + V = E + 2 5 + n = 8 + 2 5 + n = 10 n = 5
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WUPA Divide using Chunking.
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Visualise 3.D shapes from 2.D drawings and identify different nets for a closed cube.
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N ET 1
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N ET 2
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N ET 3
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N ET 4
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N ET 5
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N ET 6
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N ET 7
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N ET 8
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Draw the net of an open cube using five squares. What other arrangements of five squares will also make a net which we can fold to make an open cube? Explore different arrangements. Cut them out to check they do indeed fold to create an open cube. YOUR TASK!
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Nets of cubes Solutions – There are 11 in total
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