Free Grade 3 Introducing Nets Essentials Lesson Plans
Free Grade 3 lesson plans for Introducing Nets Essentials: 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
30 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- RememberIdentify introducing nets essentials
Identify introducing nets essentials accurately in a familiar context.
Assessed by: Exit ticket of four short items
- UnderstandExplain introducing nets essentials
Explain introducing nets essentials accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate introducing nets essentials
Calculate introducing nets essentials accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare introducing nets essentials
Compare introducing nets essentials 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 Introducing Nets Essentials 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 3 cm × 7 cm × 10 cm.[1]
- 2.Find the volume of a cuboid 7 cm × 4 cm × 6 cm.[1]
- 3.Find the volume of a cuboid 8 cm × 2 cm × 2 cm.[1]
- 4.Find the volume of a cuboid 6 cm × 6 cm × 6 cm.[1]
- 5.Find the volume of a cuboid 7 cm × 6 cm × 3 cm.[2]
- 6.Find the volume of a cuboid 6 cm × 8 cm × 4 cm.[2]
- 7.Find the volume of a cuboid 3 cm × 5 cm × 7 cm.[2]
- 8.Find the volume of a cuboid 10 cm × 2 cm × 10 cm.[2]
- 9.Find the surface area of a cuboid 4 cm × 3 cm × 6 cm.[3]
- 10.Find the surface area of a cuboid 10 cm × 3 cm × 10 cm.[3]
- 11.Find the surface area of a cuboid 8 cm × 2 cm × 5 cm.[3]
- 12.Find the surface area of a cuboid 9 cm × 2 cm × 9 cm.[3]
Show answers and working
1. 210 cm³
Volume = length × width × height. 3 × 7 × 10 = 210 cm³.
2. 168 cm³
Volume = length × width × height. 7 × 4 × 6 = 168 cm³.
3. 32 cm³
Volume = length × width × height. 8 × 2 × 2 = 32 cm³.
4. 216 cm³
Volume = length × width × height. 6 × 6 × 6 = 216 cm³.
5. 126 cm³
Volume = length × width × height. 7 × 6 × 3 = 126 cm³.
6. 192 cm³
Volume = length × width × height. 6 × 8 × 4 = 192 cm³.
7. 105 cm³
Volume = length × width × height. 3 × 5 × 7 = 105 cm³.
8. 200 cm³
Volume = length × width × height. 10 × 2 × 10 = 200 cm³.
9. 108 cm²
Three pairs of faces: 12, 18, 24. 2 × (12 + 18 + 24) = 108 cm².
10. 320 cm²
Three pairs of faces: 30, 30, 100. 2 × (30 + 30 + 100) = 320 cm².
11. 132 cm²
Three pairs of faces: 16, 10, 40. 2 × (16 + 10 + 40) = 132 cm².
12. 234 cm²
Three pairs of faces: 18, 18, 81. 2 × (18 + 18 + 81) = 234 cm².
Worked examples
Find the volume of a cuboid 8 cm × 9 cm × 9 cm.
- Volume = length × width × height.
- 8 × 9 × 9 = 648 cm³.
- Answer: 648 cm³
Find the volume of a cuboid 3 cm × 10 cm × 4 cm.
- Volume = length × width × height.
- 3 × 10 × 4 = 120 cm³.
- Answer: 120 cm³
Find the surface area of a cuboid 2 cm × 9 cm × 7 cm.
- Three pairs of faces: 18, 63, 14.
- 2 × (18 + 63 + 14) = 190 cm².
- Answer: 190 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.
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Frequently asked
- Is this Grade 3 Introducing Nets Essentials 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 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 Introducing Nets Essentials?
- Move on to Introducing Nets Techniques, Introducing Nets Word Problems, Introducing Nets Common Errors, Working with Nets, which build directly on this idea.
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