Symmetrical butterflies: middle school.Significant Problem Our sixth grade math curriculum includes lessons on symmetry I planned this symmetrical butterfly problem to reinforce the concepts learned in math class, and to review color, pattern, and design in art. Essential Concepts 1. Observing and understanding bilateral symmetry bilateral symmetry n. Symmetrical arrangement, as of an organism or a body part, along a central axis, so that the body is divided into equivalent right and left halves by only one plane. in natural forms. 2. Creating designs using straight and curving lines and organic and geometric shapes. 3. Using contrasting colors. Materials 12 x 18" (31 x 46 cm) white drawing paper, soft lead pencils, tracing paper, erasers, fine-tip black markers, colored markers, watercolor paper, watercolors, brushes, scissors scissors Cutting instrument or tool consisting of a pair of opposed metal blades that meet and cut when the handles at their ends are brought together. Modern scissors are of two types: the more usual pivoted blades have a rivet or screw connection between the cutting ends , glue, cardboard Guiding Practice Show students illustrations of butterflies. Encourage students to compare butterfly types and features. Focus attention on symmetry, patterns, and color. Discuss variety of lines and shapes found in the wings. Ask students to fold a 12 x 18" (31 x 46 cm) piece of white drawing paper in half. Direct students to draw, in pencil, one-half of a butterfly using the fold as the midpoint mid·point n. 1. Mathematics The point of a line segment or curvilinear arc that divides it into two parts of the same length. 2. A position midway between two extremes. . They should pay attention to the proportions of the upper and lower wings. Fill in the outline of the wings with curvilinear curvilinear a line appearing as a curve; nonlinear. curvilinear regression see curvilinear regression. shapes and designs. Trace the drawing on tracing paper. Make sure pencil lines are heavy. Unfold the paper, and flip the tracing paper and transfer the pencil lines to the other half of the paper to complete the butterfly. Instruct students to go over all pencil lines with a smudge-proof fine-point black marker. Use markers to color the design. Cut out the butterfly. To make a background for the butterfly, create a border design around a larger sheet of watercolor paper, using only rectilinear rec·ti·lin·e·ar adj. Moving in, consisting of, bounded by, or characterized by a straight line or lines: following a rectilinear path; rectilinear patterns in wallpaper. and geometric shapes. Color in with markers. Within the border, experiment with watercolor to create a non-representational, soft background. Glue butterfly onto this background. Leave the tips of the wings unglued un·glued adj. 1. Loosened or separated; unfastened. 2. Informal In confused distress; upset. Idiom: come unglued Informal To lose one's composure. . Assessing Learning Does the geometric border design create a striking contrast with the curvilinear design of the butterfly? Were the same contrasting colors used? ClipGard submitted by lane Sutley, an art teacher in the Somerville Middle School, Somerville, New Jersey Somerville is a borough in Somerset County, New Jersey, United States. As of the United States 2000 Census, the borough population was 12,423. It is the county seat of Somerset CountyGR6. . |
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