Freestanding Structures

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Concepts

This study delivers 1 primary concept and 2 secondary concepts.

Primary concept: Structures and Stability (DT-KS1-C004)

Type: Knowledge | Teaching weight: 1/6

Structures are physical constructions that support loads or maintain a form. At KS1, pupils explore how structures can be made stronger, stiffer and more stable through practical building activities. They investigate how the shape of a structure, the way it is joined and the materials it is made from all affect its strength and stability. This concept introduces foundational engineering principles through hands-on investigation.

Teaching guidance: Set building challenges using reclaimed materials, construction kits and card. Investigate how tubes, triangles and other shapes resist bending. Explore different joining methods including adhesives, tape, folding tabs and fasteners. Challenge pupils to make a structure that can support a specific load - a bridge that holds toy cars, a tower that holds a book. Use questions to prompt investigation: 'What happens if you make the legs wider?', 'Which shape is stronger - a square or a triangle?' Key vocabulary: structure, strong, stable, stiff, rigid, weak, collapse, support, load, base, joint, brace, triangle, beam Common misconceptions: Pupils often attribute strength to the amount of material used rather than to structure and shape. Demonstrating that a triangulated structure is stronger than a square one with the same materials addresses this. Some pupils may not understand that stability is about balance and the distribution of weight as well as strength of materials.

Differentiation

Model response (Entry): I stood three tubes up and taped them together. Then I spread them out at the bottom so it didn't wobble.

Model response (Developing): I folded the paper into a zigzag shape, like a concertina. This made it much stiffer than a flat piece of paper. The folds act like little walls that stop the paper bending.

Model response (Expected): I made four corner pillars from rolled newspaper tubes because tubes are stronger than flat paper. I used triangular braces between the pillars to stop them leaning. The roof is corrugated card for stiffness. It is 18cm tall and held the book. The triangles and tubes make it strong even though the materials are light.

Secondary concept: Materials and Their Characteristics (DT-KS1-C003)

Type: Knowledge | Teaching weight: 1/6

Different materials have different physical properties that make them suitable for different purposes. At KS1, pupils learn to identify and describe the properties of a range of materials including construction materials such as card, wood and plastic, textiles and food ingredients, and to make informed choices about which material to use based on what the product needs to do.

Differentiation

Secondary concept: Product Analysis and Evaluation (DT-KS1-C010)

Type: Process | Teaching weight: 1/6

Product analysis involves examining an existing product to understand its purpose, how it works, what it is made from and how well it achieves its intended function. At KS1, pupils develop the habit of looking critically at products, both those made by others and those they have made themselves, asking structured questions about purpose, materials, function and user. Evaluation against design criteria develops the principle that a product's success can be measured objectively rather than assessed through preference alone.

Differentiation

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Thinking lens: Structure and Function (primary)

Key question: How does the structure of this thing enable or explain what it does? Why this lens fits: Investigating existing products involves disassembly thinking: pupils examine how the structure and materials of an existing product enable it to perform its function, making structure-function reasoning the primary analytical tool. Question stems for KS1:

What shape is it? Why do you think it is that shape?

What job does this part do?

What would happen if this part were a different shape?

Can you find something else that does the same job?

Secondary lens: Evidence and Argument — Evaluating whether a product meets its design criteria requires pupils to form a judgement supported by evidence from investigation or testing — the evaluative act is a structured argument from evidence to conclusion.

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Session structure: Design, Make, Evaluate

Design, Make, Evaluate

The core Design & Technology cycle. Pupils investigate existing products and user needs, design a solution with clear specifications, plan the making process, construct using appropriate materials and techniques, test against the design brief, and evaluate the outcome with suggestions for improvement.

investigate → design → plan → make → test → evaluate Assessment: Design portfolio including investigation findings, annotated design with specifications, making log, test results, and evaluative conclusion comparing outcome to original brief. Teacher note: Use the DESIGN, MAKE AND EVALUATE template: show children existing products and help them say what they like and how they work. Support them in drawing and talking about their own design idea. Help them choose materials and make their product with adult support. Encourage them to try it out and say what worked and what they might change. KS1 question stems:

What do you like about this product? How does it work?

Can you draw what you want to make?

What materials will you use? Why?

Does your product work? What would you change?

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Design and Technology: Structures

Design brief: Design and build a freestanding tower using card, paper, and tape. The tower must be at least 30cm tall and strong enough to hold a small toy on top. Materials: card, paper, tape, straws, newspaper Tools: scissors, ruler, pencil Techniques: folding for strength, tube rolling, triangulation, base widening, tab joining Safety notes: Ensure stable work surfaces. If using newspaper tubes, supervise rolling to avoid paper cuts. All scissors should be child-safe rounded-end type. Evaluation criteria:

Does the tower stand without support?

Is it at least 30cm tall?

Can it hold a small toy on top?

What makes it strong?

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Why this study matters

Building a structure that stands up without support is a fundamental engineering challenge. Pupils discover through trial and error that a wide base is more stable, that triangles are stronger than squares, and that rolling paper into tubes makes it stiffer. The process of testing and improving teaches the iterative design cycle through direct physical feedback -- it stands or it falls.

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Pitfalls to avoid

Building too tall too quickly -- the structure collapses before joints dry

Using only glue for joints -- teach folding tabs and slotting as structural joins

Not testing with a load -- a structure that stands is not the same as one that holds something

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Vocabulary word mat

Prior knowledge (retrieval plan)

Pupils should already know the following from earlier units:

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Scaffolding and inclusion (Y1)

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Knowledge organiser

Key terms:

structure

stable

strong

stiff

base

joint

brace

triangle

load

Core facts (expected standard):

Structures and Stability: Designing and building a structure that meets a specific brief, explaining how the shape, materials and joining methods contribute to its strength and stability.

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Graph context

Node type: DTTopicSuggestion | Study ID: TS-DT-KS1-002 Concept IDs:

DT-KS1-C004: Structures and Stability (primary)

DT-KS1-C003: Materials and Their Characteristics

DT-KS1-C010: Product Analysis and Evaluation

Cypher query:

``cypher

MATCH (ts:DTTopicSuggestion {suggestion_id: 'TS-DT-KS1-002'})

-[:DELIVERS_VIA]->(c:Concept)

-[:HAS_DIFFICULTY_LEVEL]->(dl)

RETURN c.name, dl.label, dl.description

``

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Generated from the UK Curriculum Knowledge Graph — zero LLM generation.