对称面具

在为六年级学生开展对称性教学时，我们创作了这些受古代非洲、印加与阿兹特克面具启发的面具。制作这些面具需准备：描图纸、绘图纸、铅笔、胶带、彩铅及彩色记号笔。

首先将描图纸对折，用铅笔仅画出面具的一半；接着翻转描图纸，将其另一半轮廓描画到纸张的另一侧。如此，整张描图纸上便呈现出完整的面具。

随后，将整幅面具图稿转绘至绘图纸上：用胶带把描图纸固定在窗玻璃上，再将绘图纸覆于其上，沿轮廓线描摹；完成后，再用彩色记号笔勾勒出清晰的外轮廓线。

最后，用彩铅为画面着色。注意色彩选择与明暗处理均须保持左右对称。

Symmetrical Masks

Working on symmetry with 6th Grade students we created these masks inspired by ancient African, Inca and Aztec masks. To create these masks we need tracing paper, drawing paper, a pencil, tape, colored pencils and a colored felt-tip pen.

You start folding the tracing paper in half and drawing just half of a mask with a pencil. Then you turn the tracing paper and trace the other part of the mask on the other half part of the paper. In that way you will obtain the whole mask on the tracing paper.

Subsequently you copy the whole mask on a drawing paper, sticking the tracing paper on a window with tape and tracing the lines on a overlapped drawing paper. After that you trace the outline with a colored felt-tip pen.

To complete the drawing color the areas with colored pencils. Pay attention to use colors and shade in a symmetrical way