Enhancing Elementary Science with Scratch PicoBoard

Engraving: a method of cutting or incising a design into a material with a sharp tool Scratch board: illustration board in which black ink-coating is scratched away to reveal a white cla[r]

Scratch Art

Scratch art uses line and value as

elements of art and pattern and contrast

as principles of design

Line: an element of art that is a mark with

length and direction

Value: the lightness and darkness of a surface.

Pattern: a principle of design that

repeats lines and shapes

Contrast: a principle of design that shows an opposition between elements

Value is the degree of light and dark

in a design Changes in value can create contrast.

Engraving: a method of cutting or incising a design into

a material with a sharp tool

Scratch board: illustration board in which black ink-coating is

scratched away to reveal a white clay-coated surface

Scratch Art Exercise

• Create a value/zone scale on the

scratchboard from white to black including all of the shades of gray in between by

hatching or cross hatching.

• Students will move from black to white

Black will be left alone and each square

will be gradually lightened White will have all of the ink removed.

Tips for Scratch Art

• Students will find an image of an animal that is high contrast, or can

be made high contrast using Photoshop The image must be 8” x 10”

• Transfer image by lightly taping down the paper on top of the scratch art board and trace main contours with a pen

• When working on the paper, keep it covered with newsprint to prevent oil from you skin from going onto the paper

• Begin to scratch slowly Remember you can always make it lighter, but you cannot make it darker

• Scratch in the direction of the desired texture

• Do not blow the dust off of the table or off of the scratchboard Gently tap the dust on the table and wipe it into the garbage

• Negative scratching is a technique in which the design is formed by lines and shapes scratched out of the background of the paper In other words the image is composed of lines and spaces shaped by the spaces missing from the inked background It is a useful technique for designs that have fine

lines, because it is easier to carve away a line than to leave a line standing.

• Positive scratching leaves the lines and areas that is the image This

technique works best for designs with bold lines and simple shapes These marks enliven the art with the kind of texture that is associated with this

medium Positive scratching is often combined with negative scratching in the same design.