Free Grade 3 Writing Ratios in Context Lesson Plans
Free Grade 3 lesson plans for Writing Ratios in Context: 12 real questions with a full answer key and worked solutions. A ratio compares parts of a whole. To share in a ratio, add the parts, find one part, then multiply.
Free
Foundation
25 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- RememberIdentify writing ratios in context
Identify writing ratios in context accurately in a familiar context.
Assessed by: Exit ticket of four short items
- UnderstandExplain writing ratios in context
Explain writing ratios in context accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate writing ratios in context
Calculate writing ratios in context accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare writing ratios in context
Compare writing ratios in context 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 Writing Ratios in Context works
A ratio compares parts of a whole. To share in a ratio, add the parts, find one part, then multiply.
12 practice questions
Easy to hard, 24 marks in total. Try them first, then open the answers.
- 1.Simplify the ratio 24:48.[1]
- 2.Simplify the ratio 12:20.[1]
- 3.Simplify the ratio 36:60.[1]
- 4.Simplify the ratio 60:12.[1]
- 5.Share 21 in the ratio 1:2.[2]
- 6.Share 42 in the ratio 2:5.[2]
- 7.Share 50 in the ratio 4:1.[2]
- 8.Share 50 in the ratio 2:3.[2]
- 9.Share 63 in the ratio 2:7.[3]
- 10.Share 110 in the ratio 3:7.[3]
- 11.Share 80 in the ratio 4:4.[3]
- 12.Share 84 in the ratio 5:2.[3]
Show answers and working
1. 1:2
HCF of 24 and 48 is 24. Divide both parts by it: 1:2.
2. 3:5
HCF of 12 and 20 is 4. Divide both parts by it: 3:5.
3. 3:5
HCF of 36 and 60 is 12. Divide both parts by it: 3:5.
4. 5:1
HCF of 60 and 12 is 12. Divide both parts by it: 5:1.
5. 7 and 14
Total parts: 1 + 2 = 3. One part: 21 ÷ 3 = 7. 1 × 7 = 7, 2 × 7 = 14.
6. 12 and 30
Total parts: 2 + 5 = 7. One part: 42 ÷ 7 = 6. 2 × 6 = 12, 5 × 6 = 30.
7. 40 and 10
Total parts: 4 + 1 = 5. One part: 50 ÷ 5 = 10. 4 × 10 = 40, 1 × 10 = 10.
8. 20 and 30
Total parts: 2 + 3 = 5. One part: 50 ÷ 5 = 10. 2 × 10 = 20, 3 × 10 = 30.
9. 14 and 49
Total parts: 2 + 7 = 9. One part: 63 ÷ 9 = 7. 2 × 7 = 14, 7 × 7 = 49.
10. 33 and 77
Total parts: 3 + 7 = 10. One part: 110 ÷ 10 = 11. 3 × 11 = 33, 7 × 11 = 77.
11. 40 and 40
Total parts: 4 + 4 = 8. One part: 80 ÷ 8 = 10. 4 × 10 = 40, 4 × 10 = 40.
12. 60 and 24
Total parts: 5 + 2 = 7. One part: 84 ÷ 7 = 12. 5 × 12 = 60, 2 × 12 = 24.
Worked examples
Simplify the ratio 40:24.
- HCF of 40 and 24 is 8.
- Divide both parts by it: 5:3.
- Answer: 5:3
Share 88 in the ratio 4:4.
- Total parts: 4 + 4 = 8.
- One part: 88 ÷ 8 = 11.
- 4 × 11 = 44, 4 × 11 = 44.
- Answer: 44 and 44
Share 84 in the ratio 3:4.
- Total parts: 3 + 4 = 7.
- One part: 84 ÷ 7 = 12.
- 3 × 12 = 36, 4 × 12 = 48.
- Answer: 36 and 48
Interactive practice
Free, no account required — answer on screen or print it.
Common mistakes
What learners typically get wrong, and how to fix it.
Divides the total by the ratio numbers directly.
Correction: Add the parts first to find what one part is worth.
Writes the ratio in the wrong order.
Correction: Keep the order the question uses.
Teacher tips
- · Use bar models with equal-sized boxes for each part.
Parent tips
- · Make squash in a 1:4 ratio.
Real-life applications
- · Mixing paint or squash, scaling recipes.
Assessment objectives
How mastery is evidenced, and which standards it maps to.
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Frequently asked
- Is this Grade 3 Writing Ratios in Context 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 Working with Writing Ratios, Introducing Writing Ratios, Complex Numbers. 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 Writing Ratios in Context?
- Move on to Simplifying Ratios, Sharing in a Ratio, Ratio Word Problems, which build directly on this idea.
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