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prepositions of place
This is an overview of the various prepositions of place in English with a simple, clear illustration.
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Drawing 3D letters: Step-by-step plan
A visual step-by-step plan to draw letters in 3D.
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Push: Animation
Animated POISON-file on the operation of a push-button with NO and NC contacts.
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Perspective and views according to the American method
With these figures you can learn the different perspectives. The front, side and top views are clarified by means of the colors used.
You see the cavalry, dimetric, and isometric perspective.
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Image (3)Teacher, ICT co-ordinator, …