Year 3 Spring Block 2

Year 3 Maths – Spring Block 2: Length and Perimeter

Support your pupils with accurate measuring and perimeter skills using our Year 3 length and perimeter worksheets and lesson resources. Fully aligned with the White Rose Maths small steps for Spring Block 2, these materials help children measure in centimetres, metres and millimetres, convert units, and calculate perimeter through hands-on activities and clear worked examples.

Resources follow a logical progression from direct measurement to comparison and problem solving, helping pupils secure their understanding of metric units and shape-based reasoning. Includes differentiated worksheets, lesson planning, and interactive slides for effective maths teaching in Year 3.

Download our free Year 3 maths overview. Explore maths subject leader resources.

White Rose Small Steps

Week 4

  • Measure length in cm
  • Measure length in m and cm
  • Measure length in millimetres
  • Measure in cm and mm
  • Compare metres, centimetres and millimetres

Week 5

  • Find equivalent lengths (m and cm)
  • Find equivalent lengths (cm and mm)
  • Compare lengths
  • Add lengths
  • Subtract lengths

Week 6

  • Learn about perimeter
  • Measure perimeter
  • Calculate perimeter
National Curriculum Objectives
  • Measure, compare, add and subtract lengths (m/cm/mm)
  • Measure the perimeter of simple 2-D shapes

These Year 3 measurement resources are perfect for revisiting core concepts or introducing perimeter and units of measure for the first time. Designed to build confidence and accuracy through engaging visual models and meaningful contexts.

Year 3 Spring Block 2: Measurement – Length and Perimeter – FAQs

What key measurement skills are introduced in this unit? In this block, pupils learn to measure using centimetres, metres and millimetres. They explore equivalent lengths, compare units of measure, and build confidence applying their knowledge in practical contexts.
How does this block support understanding of perimeter?
Children begin to measure and calculate perimeter using standard units, helping them apply their learning to real shapes. They practise finding the total length around a 2-D shape, laying the groundwork for later work on area and more complex geometry.
Is this block aligned with White Rose Maths?
Yes – the sequence follows the White Rose Spring Block 2 small steps exactly. Each concept is broken down into manageable chunks, with visual and hands-on resources to support teaching and learning.

Can I view the full Year 3 maths plan?
Yes – download our Year 3 maths yearly overview to explore the progression across all blocks.

Are maths leadership resources available?
Absolutely. Visit our maths subject leader resources page for planning tools, tracking templates and whole-school support.