Length Measurement Adventure

Overview

This 45-minute lesson introduces Year 1 students to the concept of length and non-standard units of measurement through active, hands-on exploration. Students rotate among three measurement stations in the classroom, using familiar items to measure and compare everyday objects. The lesson is designed to meet the National Curriculum for England (Mathematics - Measurement) learning objectives for Year 1.

Curriculum Links

National Curriculum references (Mathematics – Measurement, Year 1):

Compare, describe and solve practical problems for lengths and heights [e.g. long/short, longer/shorter, tall/short, double/half]
Measure and begin to record lengths and heights
Use non-standard units to measure objects

Learning Objectives

By the end of this lesson, pupils will be able to:

Use non-standard units (blocks, paper clips, hands) to measure the length of classroom objects.
Compare lengths using everyday language such as longer, shorter, and the same length.
Record simple measurement results on a prepared chart.
Demonstrate collaborative skills by working in small groups and sharing resources.

Resources Required

Station 1: Plastic cubes/blocks (approx. 20 per group)
Station 2: Paper clips (linked where possible)
Station 3: Printed hand outlines or students using their own hands
Various classroom objects to measure (pencils, books, desks, rulers, boxes, etc.)
Simple student-friendly measurement charts with columns: Object | Unit Used | Length (Number of units)
Clipboards, pencils, and rubber
Timer or visual countdown (for station rotations)

Lesson Structure

1. Starter (5 minutes)

Engage & Assess Prior Knowledge

Gather students on the carpet.
Ask: "What do you think length means?" and "Have you ever measured something before?"
Show a ruler briefly, then explain today we will use everyday things to measure length instead of rulers.
Introduce the vocabulary: length, longer, shorter, same length, measure, unit.

2. Introduction to Activity (5 minutes)

Explain that the class will visit three different "Length Explorers Stations."
Each station uses a different type of measuring unit (blocks, paper clips, hands).
Demonstrate how to measure an object with one unit (e.g., line up blocks end to end).
Show how to record what they find on the chart.

3. Main Activity: Station Rotation (30 minutes)

Organisation: Students split into 3 groups of 8-9 pupils. Each group spends 10 minutes at each station, supported by teacher/TA rotations.

Station 1: Blocks Measure

Children measure different classroom objects by lining up blocks end to end.
Emphasise accuracy: place blocks carefully without gaps.
Record number of blocks used for each object.

Station 2: Paper Clip Lengths

Measure objects by linking paper clips and placing them along the item.
Compare lengths between objects using terms longer/shorter.
Record results.

Station 3: Handspan Measuring

Children use their own hands or printed hand outlines to measure the length of larger classroom items.
Estimate then check by counting hand units.
Record findings on the chart.

4. Plenary (5 minutes)

Regroup on the carpet.
Invite pupils to share something they learnt or found interesting (e.g., "The book was longer than the pencil by two blocks!").
Recap the vocabulary: length, measure, longer, shorter.
Discuss why it’s important to use the same kind of unit when measuring (to be fair and accurate).

Assessment

Observe children’s ability to correctly line up units without gaps at each station.
Check completion and accuracy of measurement charts for logical consistency.
Use questioning during plenary to probe understanding of length comparisons and vocabulary.
Make formative notes for next lesson (Lesson 2 will build on standard units).

Differentiation

Support: Provide extra modelling and adult support for fine motor tasks and chart recording. Use smaller objects for easier measurement.
Challenge: Encourage greater precision by asking students to measure objects using different units and compare the results. Ask why numbers differ.

Reflection & Next Steps

Gather feedback from students about their favourite station and what was tricky or fun.
Use observations to tailor the follow-up lesson where students begin measuring length using standard units (e.g., rulers, metre sticks).

Teacher Tips to 'Wow' Your Class

Bring a simple treasure map with “Length Clues” – e.g., “Find the pencil that is 5 blocks long” – to make the stations feel like a real adventure!
Use a colourful length measurement friendly chart with stickers or smiley faces for good measuring habits.
Incorporate physical movement by having students ‘stretch out’ their arms to guess lengths before measuring with units.
End with a quick “Length Explorer” certificate to celebrate their exploration and teamwork.

This active, tactile approach to measurement deeply embeds foundational concepts in a memorable way, fully aligned with the Year 1 National Curriculum for England.

Teaching Instructions