lesson
Place parts deliberately
1 · Learn
A model can be built from simpler shapes by positioning, resizing, aligning and combining them. Grouping may make parts move together; some tools also support subtracting one shape from another to form a hole. These operations are different.
Check how parts meet from several views. Objects that appear joined in one view may be separated in depth. Save an editable version before an operation that permanently merges parts.
2 · Worked example
For a model arch, I align the supports with the top piece and inspect side views. I keep a version before combining so I can revise the parts later.
3 · Your turn
Why might a front screenshot hide a gap between two model parts?
Check your answer
The parts may be offset in depth, a difference that is not clear in the front projection.
4 · Apply your learning
Build a simple three-part object and document one alignment correction found by rotating the view.
Adult guidance and safety
Use a school-approved offline or supervised tool and fictional data. Keep work private, respect media permissions and check accessibility. Paper traces support understanding but do not replace running, saving and testing a real project. Do not enter passwords, addresses or other personal details into exercises.
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Write, draw or show your working. Use a mouse, pen or finger. This pad is not a submitted answer.
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Typed notes are not submitted answers.
Check a calculation · Year 5 onward
Use this only when your teacher or adult allows a calculator for the task. Show your thinking first. It does not replace mental or written arithmetic and does not mark your lesson answer.
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