Cuboid – Surface Area – Bingo Method Students should choose nine answers from the grid and place them randomly into a 3x3 square in their book. You may want to pause your display and choose questions according to difficulty during the game. Depending on time, students could win with a line, an X, or a ‘full house’ (all).

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BINGO! 45 54 23 82 37 12 76 25 91 Surface Area of a Cuboid

Choose your numbers… 108 6 48 40 14 38 112 62 45 96 54 24 58 98 100 34 Draw a 3x3 grid in your book.

What is the surface area of this cuboid? 5cm 2cm 3cm Front & Back: (2 x 5) x 2 = 20 Top & Bottom: (3 x 5) x 2 = 30 Total = 62cm2 Left & Right: (2 x 3) x 2 = 12

What is the surface area of this cube? 4cm 1 side: (4 x 4) = 16 6 sides: 16 x 6 = 96 Total = 96cm2

What is the surface area of this cuboid? 5cm 2cm 2cm Sides: (2 x 5) x 4 = 40 Total = 48cm2 Left & Right: (2 x 2) x 2 = 8

What is the surface area of this cuboid? 6cm 0.5cm 4cm Front & Back: (0.5 x 6) x 2 = 6 Top & Bottom: (4 x 6) x 2 = 48 Total = 58cm2 Left & Right: (0.5 x 4) x 2 = 4

What is the surface area of this cuboid? 4cm 6cm 3cm Front & Back: (4 x 3) x 2 = 24 Top & Bottom: (6 x 3) x 2 = 36 Total = 108cm2 Left & Right: (4 x 6) x 2 = 48

What is the surface area of this cuboid? 8cm 1cm 1cm Sides: (1 x 8) x 4 = 32 Total = 34cm2 Left & Right: (1 x 1) x 2 = 2

What is the surface area of this cube? 3cm 1 side: (3 x 3) = 9 6 sides: 9 x 6 = 54 Total = 54cm2

What is the surface area of this cuboid? 4cm 2cm 2cm Sides: (2 x 4) x 4 = 32 Total = 40cm2 Left & Right: (2 x 2) x 2 = 8

What is the surface area of this cube? 1cm 1 side: (1 x 1) = 1 6 sides: 1 x 6 = 6 Total = 6cm2

What is the surface area of this cuboid? 3cm 1cm 1cm Sides: (3 x 1) x 4 = 12 Top & Bottom: (1 x 1) x 2 = 2 Total = 14cm2

What is the surface area of this cuboid? 0.5cm 3cm 5cm Front & Back: (3 x 0.5) x 2 = 3 Top & Bottom: (5 x 0.5) x 2 = 5 Total = 38cm2 Left & Right: (3 x 5) x 2 = 30

What is the surface area of this cuboid? 7cm 2cm 4cm Front & Back: (2 x 7) x 2 = 28 Top & Bottom: (4 x 7) x 2 = 56 Total = 100cm2 Left & Right: (2 x 4) x 2 = 16

What is the surface area of this cuboid? 1.5cm 4cm 3cm Front & Back: (4 x 1.5) x 2 = 12 Top & Bottom: (3 x 1.5) x 2 = 9 Total = 45cm2 Left & Right: (4 x 3) x 2 = 24

What is the surface area of this cuboid? 4cm 8cm 2cm Front & Back: (4 x 8) x 2 = 64 Top & Bottom: (2 x 8) x 2 = 32 Total = 112cm2 Left & Right: (4 x 2) x 2 = 16

What is the surface area of this cube? 2cm 1 side: (2 x 2) = 4 6 sides: 4 x 6 = 24 Total = 24cm2

What is the surface area of this cuboid? 2.5cm 4cm 6cm Front & Back: (4 x 2.5) x 2 = 20 Top & Bottom: (6 x 2.5) x 2 = 30 Total = 98cm2 Left & Right: (4 x 6) x 2 = 48

tom@goteachmaths.co.uk Questions? Comments? Suggestions? …or have you found a mistake!? Any feedback would be appreciated . Please feel free to email: tom@goteachmaths.co.uk