Develop pupils’ understanding of length and perimeter in Year 3 with this fully resourced maths block, aligned with White Rose Maths and the Year 3 National Curriculum. This unit focuses on measuring, comparing and calculating with lengths before applying these skills to perimeter.
Pupils begin by measuring lengths in centimetres, metres and millimetres. They learn to compare measurements, find equivalent lengths and solve problems involving adding and subtracting lengths using different units of measure.
The block then introduces perimeter as the total distance around the outside of a shape. Pupils measure and calculate the perimeter of rectangles, squares and other 2D shapes while applying their understanding of length and measurement.
These Year 3 length and perimeter resources form part of our complete Maths Masters scheme. Explore the full Spring term sequence for structured progression, interactive teaching slides and differentiated maths activities.
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Explore our Year 3 length and perimeter worksheets, lesson packs, teaching slides and planning for Spring Block 2. These resources support pupils in measuring, comparing and calculating with lengths before applying their understanding to perimeter.
Pupils learn to measure accurately using metres, centimetres and millimetres, find equivalent lengths and solve problems involving adding and subtracting measurements. They then develop an understanding of perimeter by measuring and calculating the distance around rectangles, squares and other 2D shapes.
Each lesson supports progression from practical measurement activities towards increasingly efficient calculation methods, with opportunities for reasoning and problem solving throughout the block.
This block focuses on measuring, comparing and calculating with length before introducing perimeter. Pupils measure using metres, centimetres and millimetres, find equivalent lengths and calculate the perimeter of simple 2D shapes.
Pupils work with metres (m), centimetres (cm) and millimetres (mm), learning how these units are related and when each should be used.
Perimeter is the total distance around the outside of a shape. Pupils learn to measure and calculate perimeter using a range of methods.
Yes. Pupils learn to find equivalent lengths and convert between metres and centimetres and between centimetres and millimetres.
Yes. These resources follow the White Rose small steps for Year 3 Spring Block 2 and support clear progression across the unit.
Browse the full Year 3 maths scheme to explore all blocks and lesson sequences across the year.
