Perimeter of Compound Shapes
Measure and calculate the perimeter of composite rectilinear shapes in centimetres and metres
Lesson
Set out your lesson
“Perimeter of Compound Shapes means practising the idea at the table with counters or paper models and one clear check. We will demo once, then your child tries.”
Bring to the table
- Paper shapes or a ruler and pencil
- Shape name cards
Extra for the adult
Worked example. A rectangle has four right angles. Naming the property is the check.
Optional challenge. For Perimeter of Compound Shapes, add one harder example after success.
What to notice. Keep one parent note: examples tried; results; support used. This session samples Perimeter of Compound Shapes, not mastery.
Share and support
Family records and proof options
Keep a record of your learning
Save photos, notes, and attendance. Export a proof packet for compliance or portfolio reviews.
Practice this concept
Start practicePerimeter of Compound Shapes practice
Practice key ideas from Perimeter of Compound Shapes.
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Learning resources
Extra practice links — they do not replace Gakuva’s teaching approach.
BBC Bitesize · Practice link — not the full lesson
KS2 Maths
Before you open · source notes
KS2 Maths supports Perimeter of Compound Shapes. An adult previews and guides; this is a learning page, not a scored quiz.
Free educational page, no sign-in required for the tested path.
Before you openAsk the learner one fact they learned and one question they still have.
Opening this link does not save learning or assess mastery.
Source, access and review notes
Public BBC Bitesize page. An anonymous GET on 2026-11-12 returned HTTP 200 with no login or payment prompt for this URL. Opening the link does not save practice or assess mastery. An adult should preview and guide the learner.
BBC Bitesize. “KS2 Maths.” External page; Gakuva does not copy, host, embed, or redistribute materials.
Unknown — link only
Check understanding
- Find the perimeter of an L-shaped figure by identifying all side lengths
- Calculate the perimeter of a composite shape where some sides must be deduced
- Draw a composite rectilinear shape with a perimeter of 40 cm
“If your child is given an L-shaped garden plan with all the side measurements labelled, can they add all the sides together to find the total perimeter?”
Curriculum record
- Type
- Procedural
- Subject
- Mathematics
- Domain
- Measurement
- Age range
- Ages 9–11
Standards