Measurements: cm and mm

Centimetres and millimetres are both recorded as students measure eight lettered arrows, writing each length in cm-and-mm form and as a decimal centimetre value.
Year groups
Years 2–5 (Key Stages 1–2)
File type
PDF
Preparation
Print ready

Updated Sep 27, 2026

Subject
Measurements, Maths
Topic
Measurements, Metric System
Resource types
Activities
Preparation
Print ready

From the author

About this resource

The Metrics: cm and mm product is a practical instructional resource specifically designed to enhance the teaching of measurements in primary school. It focuses on two key units in the metric system, centimetres and millimetres, under the broader area of mathematics

What's included?

  • Two worksheets that encourage hands-on exploration of length measurements.

  • Fully editable resources for adaptability to diverse learning environments.

  • Included answer sheet for ease of marking and monitoring student progress.

A tolerance level is integrated into these worksheets – allowing an error margin of 1mm more or less – reinforcing how real-life measurements aren’t always perfect!

Versatile Usage

The flexibility offered by Measurements: cm and mm allows it to serve multiple settings:

  • Whole group instruction: In class or homeschooling setups.

  • Focused learning groups: During mathematics workshop sessions.

  • Homeschool assignments: Can be used as homework at teacher/parent's discretion.

Note: This product comes as a zip file but once uncompressed will prove itself a worthy addition to your maths teaching toolkit.

Ideal for Years 2–5 students due to their curricular alignment towards measurement studies during these levels. However, any keen learner moving towards mastering metrics could take advantage too!

In conclusion, Measurements: cm and mm is an engaging tool that not only enhances your teaching experience but also fuels pupils' grasp on essential maths measurement skills.

In the classroom

Teaching tips & learning objectives

Learning objectives

  • Measure lengths in centimetres and millimetres

  • Draw a line of a given metric length

Skills covered

  • Ruler use — measuring printed arrows and recording centimetres and millimetres

  • Decimal notation — rewriting a cm-and-mm length as a decimal centimetre value

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Resource details

Concepts & topics

Core concepts

  • Centimetres

  • Millimetres

  • Decimal notation

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