Year 7 - Design and technology
Cross-sectional drawings
Communication
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This pupil-friendly study guide includes a unit summary, clear notes, common mistakes, and quick questions with answers.
Unit Summary
Pupils will develop knowledge and skills of communication, including freehand 3D sketching using the crating technique. They will learn how to render to show texture and tone. They will also learn how to draw using more formal techniques, such as one-point perspective and orthographic projection.
Lesson Summary
You will learn to produce cross-sectional drawings to show internal details.
Key Notes
- Cross-sectional drawings help see inside objects by cutting them open on paper.
- Cross-sectional drawings are used when important details are hidden inside and can't be seen from the outside.
- A cutting plane is a dashed line with arrows that shows where the object is cut to reveal the inside.
- Hatching indicates a cut section, showing internal details and clarifying it's not the full design.
Vocabulary To Learn
- cross-section: an internal view of a 3D object when cut through a plane
- cutting plane: indicates where a sectional view is taken from, represented by a dashed line with arrows
- internal details: the features inside an object only visible in a cross-sectional drawing.
Common Mistakes To Avoid
- A cross-sectional drawing is just another drawing view, such as front or side.
3 Quick Questions (With Answers)
1. Explain the lesson in two key points.
Cross-sectional drawings help see inside objects by cutting them open on paper. Cross-sectional drawings are used when important details are hidden inside and can't be seen from the outside.
2. What does this key word mean in this lesson? 'cross-section'
an internal view of a 3D object when cut through a plane.
3. Correct this common mistake.
Mistake: A cross-sectional drawing is just another drawing view, such as front or side. Correction: A cross-sectional view is an internal view showing what the inside looks like when sliced through. It is is meant to reveal hidden details inside an object.
More Lessons In This Unit
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