Similar Shapes Length Area Volume Bingo Method Students

Similar Shapes – Length, Area & Volume – Bingo Method Students should choose nine answers from the grid and place them randomly into a 3 x 3 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).

Printing To print handouts from slides Select the slide from the left. Then click: File > Print > ‘Print Current Slide’ To print multiple slides Click on a section title to highlight all those slides, or press ‘Ctrl’ at the same time as selecting slides to highlight more than one. Then click: File > Print > ‘Print Selection’ To print double-sided handouts Highlight both slides before using ‘Print Selection’. Choose ‘Print on Both Sides’ and ‘Flip on Short Edge’.

BINGO! 45 54 23 82 37 12 76 25 91 Area & Volume of Similar Shapes

Choose your numbers… Draw a 3 x 3 grid in your book.

Choose your numbers… 34 24 18 635 12 15 144 6 54 137 30 10 194 250 41 180 Draw a 3 x 3 grid in your book.

These shapes are similar. What is the area of B? Length Ratio = 4 : 8 A Area = 6 cm 2 =1: 2 Area Ratio = 12 : 22 4 cm =1: 4 B 8 cm (Not to scale)

These shapes are similar. What is the area of B? A Area = 80 cm 2 6 cm Length Ratio = 6 : 9 =2: 3 Area Ratio = 22 : 32 =4: 9 9 cm B (Not to scale)

These shapes are similar. What is the volume of B? Length Ratio = 4 : 10 Volume = 16 cm 3 A =2: 5 4 cm Volume Ratio = 23 : 53 = 8 : 125 B (Not to scale) 10 cm

These shapes are similar. What is the area of B? Area = 100 cm 2 A =5: 6 Area Ratio = 52 : 62 = 25 : 36 10 cm B 12 cm (Not to scale) Length Ratio = 10 : 12

These shapes are similar. What is the volume of B? Length Ratio = 12 : 15 A =4: 5 12 cm Volume = 70 cm 3 Volume Ratio = 43 : 53 B = 64 : 125 15 cm (Not to scale) (3 sf)

Volume = 16 cm 3 A =2: 3 20 cm B Volume = 54 cm 3 (Not to scale) Volume Ratio = 16 : 54 = 8 : 27

These shapes are similar. What is the area of B? Area = 24 cm 2 =2: 3 A Area Ratio = 22 : 32 8 cm =4: 9 B 12 cm (Not to scale) Length Ratio = 8 : 12

A Area = 16 cm 2 4 cm =2: 3 Area Ratio = 16 : 36 =4: 9 Area = 36 cm 2 B (Not to scale)

These shapes are similar. What is the volume of B? Length Ratio = 3 : 7 3 cm A Volume = 50 cm 3 Volume Ratio = 33 : 73 = 27 : 343 7 cm (Not to scale) B (3 sf)

Surface Area = 18 cm 2 A Surface Area = 50 cm 2 (Not to scale) =3: 5 Area Ratio = 18 : 50 6 cm = 9 : 25 B

These shapes are similar. What is the volume of B? 4 cm A Length Ratio = 4 : 6 Volume = 10 cm 3 6 cm =2: 3 Volume Ratio = 23 : 33 = 8 : 27 B (Not to scale) (2 sf)

3 cm Area = 4 cm 2 =1: 5 A Area Ratio = 4 : 100 = 1 : 25 B Area = 100 cm 2 (Not to scale)

Surface Area = 12 cm 2 A Area Ratio = 12 : 27 12 cm =4: 9 Surface Area = 27 cm 2 B (Not to scale) =2: 3

Volume = 4 cm 3 A =1: 2 6 cm Volume = 32 cm 3 Volume Ratio = 4 : 32 =1: 8 B (Not to scale)

These shapes are similar. What is the volume of B? Volume = 42 cm 3 A =3: 5 Surface Area = 27 cm 2 B Surface Area = 75 cm 2 (Not to scale) Area Ratio = 27 : 75 = 9 : 25 Volume Ratio = 33 : 53 = 27 : 125

These shapes are similar. What is the surface area of B? Volume = 16 cm 3 A Surface Area = 18 cm 2 =2: 3 Area Ratio = 22 : 32 =4: 9 Volume Ratio = 16 : 54 = 8 : 27 Volume = 54 cm 3 B (Not to scale) (2 sf)

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