Page 157 - The Ontario Curriculum, Grades 9 and 10: The Arts, 2010

textile. Fibre or yarn usually woven into cloth.
thumbnail sketch. A small, quick sketch that records ideas and very basic information. Thumbnail sketches are often used as examples of possible layouts, showing combinations of pictorial elements of various heights and widths, different vertical and horizontal treat- ments, and/or close-ups and distant views.
tone. See value.
unity. A principle of design. The arrangement of elements to give the viewer the feeling that all the parts of the piece form a coherent whole.
value. An element of design that describes the lightness or darkness of a colour and/or the gradual changes in the lightness or darkness of an art work even when colour is absent.
In technical terms, a tint, or a light value of a colour, is created by adding white, and a tone, or a dark value of a colour, is created by adding black.
variety. A principle of design. The quality of being diverse or incorporating a number of different or contrasting elements. Variety may be achieved by opposing, changing, elaborating, or contrasting the elements of design.
warm colours. Colours that suggest warmth (e.g., red, yellow, orange). Warm colours usually appear to advance into the foreground.
watercolour paint. Transparent, water-soluble paint available in solid cakes or in semi-liquid form in tubes.
watercolour techniques. Painting techniques using water-soluble paint. Types of watercolour techniques include the following:
– dry brush. A technique that involves the use of thick paint and little water on the brush. The relative dryness causes the brush to skip on the surface of the paper, producing a broken or textured appearance.
– salt resist. A technique that involves sprin- kling coarse salt on washes of damp, water- based paint. The salt crystals gradually take up the pigment, creating a multiplicity of light, starlike shapes on the surface of the paper.
– wash. A technique that involves broadly applying thin layers of diluted pigment to a surface, producing an almost transparent effect.
– wet on dry. A technique that involves letting each layer dry before applying another layer of colour on top.
– wet on wet. A technique that involves applying wet paint to a wet surface so that the paints bleed and blend into one another.
GLOSSARY
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