ChalkHour

Year 5 Maths: Area and perimeter lesson pack

A complete, ready-to-teach KS2 lesson on area and perimeter. Below is a real sample of what ChalkHour makes: the full pack adds three levels of worksheet, model answers, a teaching explainer and print-ready PDF and Word files.

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Real sample

Area and Perimeter Mastery

This lesson covers the fundamental concepts of area and perimeter for Year 5 students. It moves from counting squares on a grid to using formal formulas for rectangles and rectilinear composite shapes.

Learning objectives

  • Measure and calculate the perimeter of composite rectilinear shapes in centimetres and metres.
  • Calculate and compare the area of rectangles (including squares) using standard units (cm² and m²).
  • Estimate the area of irregular shapes by counting squares.

Lesson plan (60 minutes)

  1. Starter/Input · 10 min

    Introduction to concepts using square grids and visual aids. Defining Area vs Perimeter.

  2. Modelling · 10 min

    Step-by-step worked example on the whiteboard involving a rectangle with missing sides.

  3. Main Activity · 25 min

    Students work through differentiated worksheets (Support, Core, or Stretch).

  4. Discussion · 10 min

    Reviewing a 'challenge' problem as a class to address misconceptions.

  5. Plenary · 5 min

    Multiple-choice assessment quiz.

Key vocabulary

Perimeter
The total distance around the outside of a 2D shape.
Area
The amount of space inside a 2D shape.
Rectilinear
A shape where all sides meet at right angles (like an L-shape).
Square Centimetre (cm²)
A unit of area equal to a square with sides of 1cm.
Square
A rectangle with four equal sides.

Core worksheet (first questions)

  1. Calculate the perimeter of a rectangle with length 8cm and width 5cm.
  2. Calculate the area of a rectangle with length 11cm and width 4cm.
  3. The area of a rectangle is 32cm². If the width is 4cm, what is the length?
  4. A rectangular playground is 12m long and 7m wide. What is its perimeter?

Quiz (sample)

  1. 1. What is perimeter?

    • A. The space inside a shape
    • B. The distance around the outside of a shape
    • C. The number of squares inside a shape
    • D. The length of the longest side

  2. 2. Which unit is used to measure area?

    • A. cm
    • B. cm³
    • C. cm²
    • D. m

  3. 3. What is the perimeter of a rectangle with sides 7cm and 4cm?

    • A. 24cm
    • B. 22cm
    • C. 28cm
    • D. 11cm

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Support and Stretch worksheets, every answer and model answer, the teaching explainer and common misconceptions, editable and ready to print as PDF or Word.

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