FreeMathWorksheet

Worksheet with Answers

TN-MATH-GR3-69034 · v1.-3

Area of Rectangles

Grade 3 · Math · Geometry · International Baccalaureate

Grade

Grade 3

Subject

Math

Topic

Geometry

Subtopic

Area of Rectangles

Curriculum

International Baccalaureate

Difficulty

Core

Time

30 minutes

Total marks

Student name

Teacher name

Date

Learning objectives

Recognise area of rectangles accurately in math contexts.
Explain the underlying rule of area of rectangles in the student's own words.
Apply area of rectangles to multi-step and unfamiliar problems.
Justify a chosen method and identify errors in another student's work.

Skills assessed

Fluency and recall
Method and setting out
Reasoning and justification
Problem solving in context
Self-assessment

Instructions

Write your name, your teacher's name and the date in the header.
Answer every question in the space provided. Continue on the back if needed.
Show all working — method marks are awarded even when the final answer is wrong.
Aim to finish in about 30 minutes.
Complete the reflection box at the end before you hand the sheet in.

Warm-up

Bloom: Remember · 4 marks

Answer quickly. These check you are ready for the topic.

1.Write down one fact you already know about area of rectangles.
[1]
AnswerAccept any correct response that applies the area of rectangles rule accurately.
2.Name one fact you already know about area of rectangles.
[1]
AnswerAccept any correct response that applies the area of rectangles rule accurately.
3.Write down one fact you already know about area of rectangles.
[1]
AnswerAccept any correct response that applies the area of rectangles rule accurately.
4.Name one fact you already know about area of rectangles.
[1]
AnswerAccept any correct response that applies the area of rectangles rule accurately.

Recall

Bloom: Remember · 4 marks

Complete from memory. No calculator, no notes.

1.Label the key term used in area of rectangles described here: item 1.
[1]
AnswerAccept any correct response that applies the area of rectangles rule accurately.
2.Label the key term used in area of rectangles described here: item 2.
[1]
AnswerAccept any correct response that applies the area of rectangles rule accurately.
3.List the key term used in area of rectangles described here: item 3.
[1]
AnswerAccept any correct response that applies the area of rectangles rule accurately.
4.Define the key term used in area of rectangles described here: item 4.
[1]
AnswerAccept any correct response that applies the area of rectangles rule accurately.

FreeMathWorksheet · Grade 3 Math

Area of Rectangles

Basic Practice

Bloom: Understand · 5 marks

Work through each item. Show the step you used.

1.Work out part 1 using the rule for area of rectangles.
[1]
AnswerAccept any correct response that applies the area of rectangles rule accurately.
2.Complete part 2 using the rule for area of rectangles.
[1]
AnswerAccept any correct response that applies the area of rectangles rule accurately.
3.Match part 3 using the rule for area of rectangles.
[1]
AnswerAccept any correct response that applies the area of rectangles rule accurately.
4.Identify part 4 using the rule for area of rectangles.
[1]
AnswerAccept any correct response that applies the area of rectangles rule accurately.
5.Identify part 5 using the rule for area of rectangles.
[1]
AnswerAccept any correct response that applies the area of rectangles rule accurately.

Guided Practice

Bloom: Understand · 8 marks

The first step is given. Finish the reasoning.

1.Complete the method for part 1. Step 1 has been started for you.
[2]
AnswerAccept any correct response that applies the area of rectangles rule accurately.
2.Complete the method for part 2. Step 1 has been started for you.
[2]
AnswerAccept any correct response that applies the area of rectangles rule accurately.
3.Complete the method for part 3. Step 1 has been started for you.
[2]
AnswerAccept any correct response that applies the area of rectangles rule accurately.
4.Continue the working for part 4. Step 1 has been started for you.
[2]
AnswerAccept any correct response that applies the area of rectangles rule accurately.

FreeMathWorksheet · Grade 3 Math

Area of Rectangles

Independent Practice

Bloom: Apply · 10 marks

No scaffolding. Set out your full method.

1.Determine part 1 on area of rectangles without help.
[2]
AnswerAccept any correct response that applies the area of rectangles rule accurately.
2.Work out fully part 2 on area of rectangles without help.
[2]
AnswerAccept any correct response that applies the area of rectangles rule accurately.
3.Work out fully part 3 on area of rectangles without help.
[2]
AnswerAccept any correct response that applies the area of rectangles rule accurately.
4.Determine part 4 on area of rectangles without help.
[2]
AnswerAccept any correct response that applies the area of rectangles rule accurately.
5.Work out fully part 5 on area of rectangles without help.
[2]
AnswerAccept any correct response that applies the area of rectangles rule accurately.

Challenge Questions

Bloom: Analyse · 9 marks

Harder items. Attempt every one, even partially.

1.Find and justify the statement in part 1 about area of rectangles.
[3]
AnswerAccept any correct response that applies the area of rectangles rule accurately.
2.Find and justify the statement in part 2 about area of rectangles.
[3]
AnswerAccept any correct response that applies the area of rectangles rule accurately.
3.Prove the statement in part 3 about area of rectangles.
[3]
AnswerAccept any correct response that applies the area of rectangles rule accurately.

FreeMathWorksheet · Grade 3 Math

Area of Rectangles

Real-life Application

Bloom: Apply · 6 marks

Use the skill in context. State units in your answer.

1.In context, work out a real math situation that depends on area of rectangles.
[3]
AnswerAccept any correct response that applies the area of rectangles rule accurately.
2.In context, work out a real math situation that depends on area of rectangles.
[3]
AnswerAccept any correct response that applies the area of rectangles rule accurately.

Reflection

Bloom: Create · 0 marks

Not marked. Answer honestly — this guides your next worksheet.

1.Record how confident you feel with area of rectangles and what you will practise next.
[—]
AnswerStudent response — not marked.
2.Describe how confident you feel with area of rectangles and what you will practise next.
[—]
AnswerStudent response — not marked.

FreeMathWorksheet

Answer key · Area of Rectangles

Warm-up

1.Accept any correct response that applies the area of rectangles rule accurately.[1]
1. Recall the definition that underpins area of rectangles.
2. Apply it to the values or wording given in the question.
3. State the final answer clearly, with units or terminology where relevant.
2.Accept any correct response that applies the area of rectangles rule accurately.[1]
1. Recall the definition that underpins area of rectangles.
2. Apply it to the values or wording given in the question.
3. State the final answer clearly, with units or terminology where relevant.
3.Accept any correct response that applies the area of rectangles rule accurately.[1]
1. Recall the definition that underpins area of rectangles.
2. Apply it to the values or wording given in the question.
3. State the final answer clearly, with units or terminology where relevant.
4.Accept any correct response that applies the area of rectangles rule accurately.[1]
1. Recall the definition that underpins area of rectangles.
2. Apply it to the values or wording given in the question.
3. State the final answer clearly, with units or terminology where relevant.

Recall

1.Accept any correct response that applies the area of rectangles rule accurately.[1]
1. Recall the definition that underpins area of rectangles.
2. Apply it to the values or wording given in the question.
3. State the final answer clearly, with units or terminology where relevant.
2.Accept any correct response that applies the area of rectangles rule accurately.[1]
1. Recall the definition that underpins area of rectangles.
2. Apply it to the values or wording given in the question.
3. State the final answer clearly, with units or terminology where relevant.
3.Accept any correct response that applies the area of rectangles rule accurately.[1]
1. Recall the definition that underpins area of rectangles.
2. Apply it to the values or wording given in the question.
3. State the final answer clearly, with units or terminology where relevant.
4.Accept any correct response that applies the area of rectangles rule accurately.[1]
1. Recall the definition that underpins area of rectangles.
2. Apply it to the values or wording given in the question.
3. State the final answer clearly, with units or terminology where relevant.

Basic Practice

1.Accept any correct response that applies the area of rectangles rule accurately.[1]
1. Recall the definition that underpins area of rectangles.
2. Apply it to the values or wording given in the question.
3. State the final answer clearly, with units or terminology where relevant.
2.Accept any correct response that applies the area of rectangles rule accurately.[1]
1. Recall the definition that underpins area of rectangles.
2. Apply it to the values or wording given in the question.
3. State the final answer clearly, with units or terminology where relevant.
3.Accept any correct response that applies the area of rectangles rule accurately.[1]
1. Recall the definition that underpins area of rectangles.
2. Apply it to the values or wording given in the question.
3. State the final answer clearly, with units or terminology where relevant.
4.Accept any correct response that applies the area of rectangles rule accurately.[1]
1. Recall the definition that underpins area of rectangles.
2. Apply it to the values or wording given in the question.
3. State the final answer clearly, with units or terminology where relevant.
5.Accept any correct response that applies the area of rectangles rule accurately.[1]
1. Recall the definition that underpins area of rectangles.
2. Apply it to the values or wording given in the question.
3. State the final answer clearly, with units or terminology where relevant.

Guided Practice

1.Accept any correct response that applies the area of rectangles rule accurately.[2]
1. Recall the definition that underpins area of rectangles.
2. Apply it to the values or wording given in the question.
3. State the final answer clearly, with units or terminology where relevant.
2.Accept any correct response that applies the area of rectangles rule accurately.[2]
1. Recall the definition that underpins area of rectangles.
2. Apply it to the values or wording given in the question.
3. State the final answer clearly, with units or terminology where relevant.
3.Accept any correct response that applies the area of rectangles rule accurately.[2]
1. Recall the definition that underpins area of rectangles.
2. Apply it to the values or wording given in the question.
3. State the final answer clearly, with units or terminology where relevant.
4.Accept any correct response that applies the area of rectangles rule accurately.[2]
1. Recall the definition that underpins area of rectangles.
2. Apply it to the values or wording given in the question.
3. State the final answer clearly, with units or terminology where relevant.

Independent Practice

1.Accept any correct response that applies the area of rectangles rule accurately.[2]
1. Recall the definition that underpins area of rectangles.
2. Apply it to the values or wording given in the question.
3. State the final answer clearly, with units or terminology where relevant.
2.Accept any correct response that applies the area of rectangles rule accurately.[2]
1. Recall the definition that underpins area of rectangles.
2. Apply it to the values or wording given in the question.
3. State the final answer clearly, with units or terminology where relevant.
3.Accept any correct response that applies the area of rectangles rule accurately.[2]
1. Recall the definition that underpins area of rectangles.
2. Apply it to the values or wording given in the question.
3. State the final answer clearly, with units or terminology where relevant.
4.Accept any correct response that applies the area of rectangles rule accurately.[2]
1. Recall the definition that underpins area of rectangles.
2. Apply it to the values or wording given in the question.
3. State the final answer clearly, with units or terminology where relevant.
5.Accept any correct response that applies the area of rectangles rule accurately.[2]
1. Recall the definition that underpins area of rectangles.
2. Apply it to the values or wording given in the question.
3. State the final answer clearly, with units or terminology where relevant.

Challenge Questions

1.Accept any correct response that applies the area of rectangles rule accurately.[3]
1. Recall the definition that underpins area of rectangles.
2. Apply it to the values or wording given in the question.
3. State the final answer clearly, with units or terminology where relevant.
2.Accept any correct response that applies the area of rectangles rule accurately.[3]
1. Recall the definition that underpins area of rectangles.
2. Apply it to the values or wording given in the question.
3. State the final answer clearly, with units or terminology where relevant.
3.Accept any correct response that applies the area of rectangles rule accurately.[3]
1. Recall the definition that underpins area of rectangles.
2. Apply it to the values or wording given in the question.
3. State the final answer clearly, with units or terminology where relevant.

Real-life Application

1.Accept any correct response that applies the area of rectangles rule accurately.[3]
1. Recall the definition that underpins area of rectangles.
2. Apply it to the values or wording given in the question.
3. State the final answer clearly, with units or terminology where relevant.
2.Accept any correct response that applies the area of rectangles rule accurately.[3]
1. Recall the definition that underpins area of rectangles.
2. Apply it to the values or wording given in the question.
3. State the final answer clearly, with units or terminology where relevant.

Reflection

1.Student response — not marked.[0]
1. Recall the definition that underpins area of rectangles.
2. Apply it to the values or wording given in the question.
3. State the final answer clearly, with units or terminology where relevant.
2.Student response — not marked.[0]
1. Recall the definition that underpins area of rectangles.
2. Apply it to the values or wording given in the question.
3. State the final answer clearly, with units or terminology where relevant.

FreeMathWorksheet

Teacher pack · Area of Rectangles

Marking scheme

Band	Marks	Descriptor
Mastered	39–46	Applies area of rectangles fluently, including in unfamiliar contexts, with clear justification.
Secure	30–38	Reliable in routine questions; reasoning is mostly complete.
Developing	18–29	Secure in scaffolded items, inconsistent once support is removed.
Emerging	0–17	Needs re-teaching of the core rule before progressing.

Teacher notes

Set the warm-up as a five-minute starter; it diagnoses readiness for area of rectangles before you teach.
Guided practice is the pivot point — circulate here rather than during independent practice.
Mark the reasoning questions with the marking scheme bands, not raw totals, so progress is comparable across variants.
Students who band Emerging should repeat the Easy variant of this same subtopic before moving on within Geometry.

Common student mistakes

Confusing area of rectangles with a neighbouring idea in geometry.

Teaching tips

Model one worked example of area of rectangles under a visualiser before handing the sheet out.
Ask students to predict which question they will find hardest, then check the prediction afterwards.
Pair Developing students with Secure students for the guided practice block only.
Use the answer key as a self-marking station rather than collecting the sheets in.

Extension activities

Challenge worksheet on area of rectangles with justification-only questions.
Design your own area of rectangles question and write the mark scheme for it.
Link area of rectangles to the next subtopic in Geometry and explain the connection.
Ten-minute timed practice to convert accuracy into fluency.