3D Shapes Playdough

Overview

Duration: 30 minutes
Class size: 15 Reception pupils
Unit: 3D Shapes Exploration (Lesson 2 of 4)
Curriculum: Northern Ireland Curriculum (Mathematics and Numeracy Area)

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Learning Objectives

By the end of this lesson, pupils will:

• Identify and name common 3D shapes such as cubes, spheres, cones, and cylinders.
• Describe simple properties of 3D shapes using familiar mathematical language: faces, edges, and vertices.
• Develop fine motor skills and spatial awareness through manipulating playdough.
• Collaborate and communicate in pairs to compare shape properties.

Curriculum References:

• Mathematics and Numeracy Key Stage 1, Level 1, NI Curriculum
  • Math 4/03: Explore shapes in the environment and talk about their properties.
  • Math 4/04: Use everyday language to describe position, direction, and movement.
  • Math 4/14: Use three-dimensional shapes to make models and describe them.
• Personal Development and Mutual Understanding (PDMU)
  • Develop positive relationships and turn-taking through paired work.

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Key Vocabulary

• 3D shape
• Face
• Edge
• Vertex (Vertices)
• Cube
• Sphere
• Cone
• Cylinder
• Playdough

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Resources

• Playdough (sufficient for each pair)
• Laminated picture cards of 3D shapes (cube, sphere, cone, cylinder)
• Whiteboard and marker
• Large poster with labelled 3D shape properties
• Shape count chart for recording faces, edges, vertices
• Cleaning wipes and aprons

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Lesson Structure

1. Introduction & Recap (5 minutes)

• Gather pupils on the carpet. Show the laminated cards of 3D shapes used in previous lesson or introduce if new.
• Review names and real-life examples of each shape briefly using the cards and posters (e.g., “A cube looks like a dice!”).
• Ask pupils to recall what faces, edges, and vertices mean in their own words. Use simple language: faces are flat sides; edges are lines where faces meet; vertices are corners.
• Use a big colourful model or the poster to point and repeat together.

Differentiation: Use pointing and clapping to emphasise vertices and edges for visual and kinaesthetic learners.

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2. Main Activity: Playdough Shape Building (20 minutes)

Step 1: Demonstration (5 mins)

• Show how to roll playdough to make spheres (balls), cylinders (log shape), cones (roll a triangle shape), and cubes (flatten and join 6 cubes).
• Demonstrate counting faces, edges, and vertices on a simple playdough cube.

Step 2: Paired Build & Explore (15 mins)

• Pupils work in pairs to create one example each of cube, sphere, cone, and cylinder using playdough.
• Encourage them to talk about what they feel on each shape: “How many flat faces does your cube have?” “Do you see any edges on your sphere?”
• Provide a shape count chart at their table. After making a shape, they put tally marks together for the number of faces, edges, and vertices.
• Teacher and classroom assistant circulate to support vocabulary use, scaffold questions, and promote peer talk.

Behaviour & Engagement Tip: Use “shape detectives” roles—one counts faces, one edges, one vertices to encourage teamwork.

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3. Plenary & Reflection (5 minutes)

• Invite 2 or 3 pairs to show their favourite shape to the class and tell one property about it.
• Reinforce vocabulary by pointing on the poster and asking the class, e.g. “Who can tell me how many edges a cone has?”
• Summarise: “We made shapes out of playdough and talked about faces, edges, and vertices. Well done for working together and using new words!”

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Assessment

• Formative: Observe pupil participation and use of shape vocabulary during paired tasks.
• Verbal: Questioning during plenary to check understanding of faces, edges, and vertices.
• Anecdotal notes: Record pupils who confidently identify properties or who need additional support.

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Inclusion & SEN Considerations

• Support pupils with fine motor difficulties by allowing them to use moulds or pre-shaped objects to feel shape properties.
• Use visual timers to help pupils understand time for building and sharing stages.
• Provide sentence starters ("My shape has…", "This shape is…") to aid language development for EAL pupils.
• Seating arrangement to pair pupils with complementary skills and language abilities.

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Extension Ideas (if time allows)

• Use different coloured playdough for faces vs. edges to reinforce their distinctions visually.
• Sort shapes by number of faces or whether they roll or stack, supporting early classification skills.

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Teacher Reflection Notes

• Note engagement level with tactile materials and adjust next lessons to include more hands-on exploration if successful.
• Reflect on language uptake: Are pupils using terms like vertex or edge independently? Plan language reinforcement if needed.
• Monitor pair dynamics for effective collaborative learning, adjusting pairs if necessary.

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This practical, language-rich, multisensory lesson ensures Reception pupils align with Northern Ireland Curriculum expectations by actively discovering 3D shape properties through play and peer interaction.