Free Grade 3 Working with Introducing Nets Common Errors Lesson Plans
Free Grade 3 lesson plans for Working with Introducing Nets Common Errors: 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
Core
35 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- UnderstandExplain working with introducing nets common errors
Explain working with introducing nets common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate working with introducing nets common errors
Calculate working with introducing nets common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare working with introducing nets common errors
Compare working with introducing nets common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
- EvaluateJustify working with introducing nets common errors
Justify working with introducing nets common errors 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 Introducing Nets Common Errors 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 8 cm × 10 cm × 2 cm.[1]
- 2.Find the volume of a cuboid 3 cm × 2 cm × 2 cm.[1]
- 3.Find the volume of a cuboid 6 cm × 9 cm × 2 cm.[1]
- 4.Find the volume of a cuboid 5 cm × 5 cm × 7 cm.[1]
- 5.Find the volume of a cuboid 7 cm × 2 cm × 8 cm.[2]
- 6.Find the volume of a cuboid 7 cm × 3 cm × 10 cm.[2]
- 7.Find the volume of a cuboid 2 cm × 2 cm × 3 cm.[2]
- 8.Find the volume of a cuboid 8 cm × 4 cm × 6 cm.[2]
- 9.Find the surface area of a cuboid 2 cm × 3 cm × 8 cm.[3]
- 10.Find the surface area of a cuboid 2 cm × 7 cm × 2 cm.[3]
- 11.Find the surface area of a cuboid 3 cm × 2 cm × 3 cm.[3]
- 12.Find the surface area of a cuboid 4 cm × 4 cm × 4 cm.[3]
Show answers and working
1. 160 cm³
Volume = length × width × height. 8 × 10 × 2 = 160 cm³.
2. 12 cm³
Volume = length × width × height. 3 × 2 × 2 = 12 cm³.
3. 108 cm³
Volume = length × width × height. 6 × 9 × 2 = 108 cm³.
4. 175 cm³
Volume = length × width × height. 5 × 5 × 7 = 175 cm³.
5. 112 cm³
Volume = length × width × height. 7 × 2 × 8 = 112 cm³.
6. 210 cm³
Volume = length × width × height. 7 × 3 × 10 = 210 cm³.
7. 12 cm³
Volume = length × width × height. 2 × 2 × 3 = 12 cm³.
8. 192 cm³
Volume = length × width × height. 8 × 4 × 6 = 192 cm³.
9. 92 cm²
Three pairs of faces: 6, 24, 16. 2 × (6 + 24 + 16) = 92 cm².
10. 64 cm²
Three pairs of faces: 14, 14, 4. 2 × (14 + 14 + 4) = 64 cm².
11. 42 cm²
Three pairs of faces: 6, 6, 9. 2 × (6 + 6 + 9) = 42 cm².
12. 96 cm²
Three pairs of faces: 16, 16, 16. 2 × (16 + 16 + 16) = 96 cm².
Worked examples
Find the volume of a cuboid 5 cm × 10 cm × 5 cm.
- Volume = length × width × height.
- 5 × 10 × 5 = 250 cm³.
- Answer: 250 cm³
Find the volume of a cuboid 5 cm × 10 cm × 7 cm.
- Volume = length × width × height.
- 5 × 10 × 7 = 350 cm³.
- Answer: 350 cm³
Find the surface area of a cuboid 8 cm × 10 cm × 5 cm.
- Three pairs of faces: 80, 50, 40.
- 2 × (80 + 50 + 40) = 340 cm².
- Answer: 340 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
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Frequently asked
- Is this Grade 3 Working with Introducing Nets Common Errors 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 Rules and Methods in Introducing Nets Common Errors, Key Vocabulary of Introducing Nets Common Errors, Introducing Nets Word Problems. 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 Introducing Nets Common Errors?
- Move on to Introducing Nets Common Errors in Examinations, Introducing Nets Essentials, Introducing Nets Techniques, Introducing Nets Word Problems, which build directly on this idea.
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