Free Grade 3 Working with Nets Lesson Plans
Free Grade 3 lesson plans for Working with Nets: 12 real questions with a full answer key and worked solutions. Volume is how much space a 3D shape takes up. For a cuboid, multiply length × width × height. Surface area is the total area of all faces.
Free
Higher
15 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- RememberIdentify working with nets
Identify working with nets accurately in a familiar context.
Assessed by: Exit ticket of four short items
- UnderstandExplain working with nets
Explain working with nets accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate working with nets
Calculate working with nets accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare working with nets
Compare working with nets accurately in a familiar context.
Assessed by: Exit ticket of four short items
Prerequisites
Close these gaps first — each has its own free lesson, worksheet and quiz.
How Working with Nets works
Volume is how much space a 3D shape takes up. For a cuboid, multiply length × width × height. Surface area is the total area of all faces.
12 practice questions
Easy to hard, 24 marks in total. Try them first, then open the answers.
- 1.Find the volume of a cuboid 2 cm × 8 cm × 7 cm.[1]
- 2.Find the volume of a cuboid 7 cm × 6 cm × 4 cm.[1]
- 3.Find the volume of a cuboid 6 cm × 2 cm × 3 cm.[1]
- 4.Find the volume of a cuboid 3 cm × 8 cm × 9 cm.[1]
- 5.Find the volume of a cuboid 7 cm × 9 cm × 5 cm.[2]
- 6.Find the volume of a cuboid 6 cm × 10 cm × 2 cm.[2]
- 7.Find the volume of a cuboid 9 cm × 2 cm × 9 cm.[2]
- 8.Find the volume of a cuboid 8 cm × 5 cm × 8 cm.[2]
- 9.Find the surface area of a cuboid 9 cm × 4 cm × 7 cm.[3]
- 10.Find the surface area of a cuboid 5 cm × 3 cm × 9 cm.[3]
- 11.Find the surface area of a cuboid 2 cm × 2 cm × 6 cm.[3]
- 12.Find the surface area of a cuboid 6 cm × 8 cm × 5 cm.[3]
Show answers and working
1. 112 cm³
Volume = length × width × height. 2 × 8 × 7 = 112 cm³.
2. 168 cm³
Volume = length × width × height. 7 × 6 × 4 = 168 cm³.
3. 36 cm³
Volume = length × width × height. 6 × 2 × 3 = 36 cm³.
4. 216 cm³
Volume = length × width × height. 3 × 8 × 9 = 216 cm³.
5. 315 cm³
Volume = length × width × height. 7 × 9 × 5 = 315 cm³.
6. 120 cm³
Volume = length × width × height. 6 × 10 × 2 = 120 cm³.
7. 162 cm³
Volume = length × width × height. 9 × 2 × 9 = 162 cm³.
8. 320 cm³
Volume = length × width × height. 8 × 5 × 8 = 320 cm³.
9. 254 cm²
Three pairs of faces: 36, 28, 63. 2 × (36 + 28 + 63) = 254 cm².
10. 174 cm²
Three pairs of faces: 15, 27, 45. 2 × (15 + 27 + 45) = 174 cm².
11. 56 cm²
Three pairs of faces: 4, 12, 12. 2 × (4 + 12 + 12) = 56 cm².
12. 236 cm²
Three pairs of faces: 48, 40, 30. 2 × (48 + 40 + 30) = 236 cm².
Worked examples
Find the volume of a cuboid 3 cm × 3 cm × 8 cm.
- Volume = length × width × height.
- 3 × 3 × 8 = 72 cm³.
- Answer: 72 cm³
Find the volume of a cuboid 4 cm × 10 cm × 2 cm.
- Volume = length × width × height.
- 4 × 10 × 2 = 80 cm³.
- Answer: 80 cm³
Find the surface area of a cuboid 5 cm × 5 cm × 10 cm.
- Three pairs of faces: 25, 50, 50.
- 2 × (25 + 50 + 50) = 250 cm².
- Answer: 250 cm²
Interactive practice
Free, no account required — answer on screen or print it.
Common mistakes
What learners typically get wrong, and how to fix it.
Adds the dimensions instead of multiplying.
Correction: Volume = l × w × h.
Counts only three faces for surface area.
Correction: A cuboid has six faces — three matching pairs.
Teacher tips
- · Build cuboids from cubes before using the formula.
Parent tips
- · Work out how many sugar cubes fit in a box.
Real-life applications
- · Filling a fish tank, wrapping a present.
Assessment objectives
How mastery is evidenced, and which standards it maps to.
Every free resource for Working with Nets
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Frequently asked
- Is this Grade 3 Working with Nets lesson plan really free?
- Yes. Every lesson plans on FreeMathWorksheet is free to use, print and share — no account, no paywall and no watermark.
- What should a learner already know before this?
- Start with Introducing Nets, Perimeter and Area. Each one has its own free lesson, worksheet and quiz.
- How is the lesson plan sequenced?
- Recognition first, then understanding, application, reasoning and finally mastery — the same ladder used across every free resource on the platform.
- What comes next after Working with Nets?
- Move on to Nets in Context, Surface Area, Volume of Prisms, Volume of Cylinders, which build directly on this idea.
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