负形绘画：神奇水母
本作品由七年级学生完成，灵感源自葆拉·维塔莱（Paola Vitale）与罗萨娜·博苏（Rossana Bossù）合著的插画书《水母花园》（“Il Giardino delle Meduse”）（https://www.camelozampa.com/en/shop/the-jellyfish-garden/）。在这本精彩绝伦的书中，我们仔细观察了大量细致入微的水母插图，尤其关注那些以“负形”方式绘制的作品——即在深色底面上用白色油画棒作画。
受这些图像启发，每位学生从不同种类的水母中选取各自喜爱的局部细节进行临摹与组合，例如伞盖顶部、伞缘瓣、触手或口腕，从而创造出独一无二的个性化水母形象。
本次活动的操作要求如下：
- 临摹不同水母的局部细节，并据此设计原创图案
- 使用浅色油画棒作画；白色可用，粉色、米色、黄色、蓝色、浅绿色等亦可
- 运用“负形”明暗关系表现透明感
- 在画面中央绘制一只大型水母
- 背景中添加若干小型水母图案，持续从书中插图汲取灵感
为临摹各类水母的细节，我们使用iPad平板电脑，教师预先设置好共享幻灯片并导入相关图片；学生据此自主选择最感兴趣的局部进行临摹。辅助材料包括紫、蓝、黑色卡纸，以及白色与浅色系的彩铅（具油画棒般柔和色调）。
负形绘画即以“光”为媒介进行描绘：施加更大压力时笔触更亮，减小压力则笔触变暗。当在彩色底纸上使用白色铅笔作画时，其明度关系与在白纸上用黑色铅笔作画恰恰相反。此时，我们得以塑造出明亮的形态与通透质感，恰如你专属而独特的水母一般。
Negative drawing: Magic Jellyfish
This work made with the 7th Grade students is inspired by the illustrated book ” The Jellyfish Garden” (“Il Giardino delle Meduse”) by Paola Vitale and Rossana Bossù. In this wonderful book we have observed the numerous and detailed drawings of jellyfish, in particular the drawings made IN NEGATIVE, that is made with white pastels on a dark background.
Inspired by these images, each student has chosen different details from different species of jellyfish, copying and assembling details such as the upper umbrella, the marginal lobes, the tentacles or the oral arms, thus creating their own unique jellyfish.
The instructions for the activity are:
- copy details of different jellyfish and create your own original design
- work with light pastels, white is fine but also pink, cream, yellow, blue, light green…
- make parts with “negative” SHADES to create transparency
- make a single big jellyfish in the middle
- in the background make smaller drawings, always taking inspiration from the images in the book
To copy the details of the different jellyfish we used the iPad Tablet where I set up a shared presentation with the images, then the students chose to copy the details they preferred. As support we used purple, blue and black cardboards and we used colored pencils white and light colors with pastel tints.
In negative drawing we draw with light, so our stroke will be brighter if we use more pressure and darker if we lighten the stroke. Working on a colored base with white pencil, the value scale is the opposite of working on white sheets with black pencil. In this case you create bright shapes and transparencies suitable to your unique and special jellyfish.
