Interpret orthographic projections
Lesson details
Learning outcome
I can interpret an orthographic projection and sketch the shape 3D.
Key learning points
- Orthographic projections are used to share the details and dimensions of a design.
- Orthographic projections are used to accurately represent 3D designs in 2D.
- Orthographic projections are drawn to scale and show the true dimensions of designs.
- Orthographic projections use standard conventions, making them universal/international.
Keywords
Orthographic - represents a 3D object in 2D, where views are projected from the object's surface
Isometric - a 3D representation of an object where sides are drawn at 30 degrees
Dimension - measurements on a drawing to show the exact size of parts
Centre line - a dashed line that marks the middle of a hole or a symmetrical part of an object
Common misconception
Orthographic views are are separate drawings and do not connect.
Explain that each view (top, front, and side) represents a different perspective of the same object.
Teacher tip
Use simple building blocks with the view names written on each face to learn the beginning steps. Use squared paper and shapes with straight lines to teach students the fundamentals.
Licence
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.A point is a point where all lines in a one-point perspective drawing meet.
Q2.One point perspective is a way of drawing in 2D.
Q3.How do the objects closer to the viewer appear in one point perspective drawings?
Q4.What is the term given to the illusion of distance or three-dimensional space on a flat surface?
Q5.What do you need to draw before starting a one point perspective drawing?
Q6.When was one point perspective drawing first seen?
Assessment exit quiz
6 Questions
Q1.What is the type of drawing that is used to represent a three-dimensional object in two dimensions?
Q2.Which views of an object are included in an orthographic drawing?
Q3.An drawing is a 3D style that shows multiple sides of an object at once.
Q4.The 3 views for an orthographic drawing are not separate drawings and connect together.
Q5.What term is given to the measurements you add to a drawing to show the exact size of each part?
Q6.The rules for creating an orthographic drawing are called conventions.
To help you plan your 7 design and technology lesson on: Interpret orthographic projections, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your 7 design and technology lesson on: Interpret orthographic projections, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
We use learning cycles to break down learning into key concepts or ideas linked to the learning outcome. Each learning cycle features explanations with checks for understanding and practice tasks with feedback. All of this is found in our slide decks, ready for you to download and edit. The practice tasks are also available as printable worksheets and some lessons have additional materials with extra material you might need for teaching the lesson.
The assessment exit quiz will test your pupils' understanding of the key learning points.
Our video is a tool for planning, showing how other teachers might teach the lesson, offering helpful tips, modelled explanations and inspiration for your own delivery in the classroom. Plus, you can set it as homework or revision for pupils and keep their learning on track by sharing an online pupil version of this lesson.
Explore more key stage 3 design and technology lessons from the Communication unit, dive into the full secondary design and technology curriculum, or learn more about lesson planning.