Cuboid – Volume & Surface Area – Messenger! In this activity, one student at a time acts as a messenger for their team (2+ students). Without running (!), they relay information about the questions (posted around the room) to their teammates who then answer them. Students need to record the question letter and the answer so they can mark their work using the answer slide at the end of the activity. With the points system, students can attempt appropriate questions. You could choose posters/questions to include and delete others. (Clear plastic wallets around your classroom make it quick and easy to display posters.)

Volume & Surface Area of Cuboids - Messenger In this activity, one student acts as a messenger for their team (2+ students). Without running (!), they relay information about the questions (posted around the room) to their teammates who then answer them. Students need to record the question letter and the answer so they can mark their work using the answer slide at the end of the activity. With the points system, students can attempt appropriate questions. You could choose the posters/questions to include and delete others. (Use clear plastic wallets around your classroom to make it quick and easy to put up posters.)

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’

Messenger! Title Slide

10 In teams pick a messenger! It’s their job to collect questions for the rest of the team to answer. You can change who is the messenger but only one person is allowed to stand up at once and they can’t carry a pen or paper to the question! Each question is worth a different number of points! Record the question letter and your answer on a single piece of paper. After marking, the team that scores the most points wins! 10 Optional rules slide to show the class.

3 3 Question B Question A Calculate the volume of this cube. 5cm

5 4 Question D Question C Calculate the volume of this cuboid. 3cm 8m 12cm 9m 7cm

5 5 Question F Question E Calculate the surface area of this cube. 3m 4cm 4.2m

7 6 Question H Question G Calculate the surface area of this cuboid. Calculate the surface area of this cuboid. 4mm 7mm 5cm 8mm 9mm 4cm 6cm

8 8 Question J Question I Calculate the volume and surface area of this cuboid. Calculate the volume and surface area of this cuboid. 5mm 2m 3mm 13mm 5m 6m

9 9 Question L Question K Calculate the volume and surface area of this cuboid. Calculate the volume and surface area of this cuboid. 15cm 20cm 200mm 0.3m 0.4m 25cm

10 11 Question M Question N Calculate the volume and surface area 6cm Calculate the volume of this compound cuboid. 3cm 4cm 2cm Question N 11 Calculate the volume and surface area of this compound cuboid. 2m 1.5m 3m 3m 4m

15 12 Question O Question P The surface area of this cuboid is 208cm2. What is the missing length? 6cm 8cm ? Question P 12 This box is 12cm deep and has no top. How many 1cm3 cubes can it hold? How much cardboard is needed to construct the box? 20m 25cm

12 12 Question R Question Q The volume of this cuboid is 240cm3. What is its surface area? The surface area of this cuboid is 52cm2. Find the value of 𝑥. 4cm 𝑥+1 cm ? 𝑥 cm 10cm 𝑥+2 cm Hint: Estimate values

13 13 Question T Question S Calculate the Calculate the volume and surface area of this compound cuboid. Calculate the volume and surface area of this compound cuboid. 7m 4cm 4m 4cm 6m 6cm 4cm 5cm 4m 12cm 2m

A B C D E F G H I J K L M N O P Q R S T Qu. Answer Points A 125cm3 3 B 216cm3 C 252cm3 4 D 36cm3 5 E 96cm2 F 54cm2 G 148cm2 6 H 232mm2 7 I V = 60m3 SA = 104m2 8 J V = 195mm3 SA = 238mm2 Qu. Answer Points K V = 15000cm3 SA = 3700cm2 9 L V = 12000cm3 SA = 3400cm2 M 60cm3 10 N V = 27m3 SA = 60m2 11 O 4cm 15 P 6000 cubes SA = 1580cm2 12 Q 𝑥=2 R 248cm2 S V = 128m3 SA = 168m2 13 T V = 320cm3 SA = 328cm2 Answers to display so students can mark their own or another team’s work.

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