油画棒：绘制球体的多种创意

我们身边有多少球形物体？在本次绘画活动中，我让学生们选择一张球形物体的图片进行临摹。这些作品全部使用油画棒完成，并运用了多种技法。本次油画棒绘画挑战仅设三项要求：选择一个类球体对象来表现明度；至少使用两种油画棒技法；添加背景。

这一创意源自一位我长期关注的美国美术教师——杰西卡·汉密尔顿（Jessica Hamilton），她以创新且独具原创性的教学活动而闻名。您可在此查看她的Instagram主页，以及她在知名教师资源网站Teachers Pay Teachers上的页面：Mrs Hamilton’s ART Class，其中汇集了她所有富有趣味性的教学建议。

以下是我于美术课上发放给学生的练习工作表，用于实践各类油画棒绘画技法。通过轻压或重压混合两种及以上颜色、采用揉擦法（scumbling）或点绘法（stippling）调和色彩，或运用刮刻法（sgraffito）——即先叠加两种颜色，再刮去表层颜料——均可获得不同效果。

每位学生均自行选取一张球形物体图片，并运用两种或以上油画棒技法完成临摹。

以下是学生们完成的作品。

Oil pastels: many ideas for a sphere

How many spherical objects do surround us? For this drawing activity, I asked my students to choose an image of a spherical object to copy. These drawings are made entirely with oil pastels with different techniques. For this oil pastel drawing challenge, there were only 3 requirements: Choose a sphere-like object to create value; Use at least 2 oil pastel techniques; Add a background⁣.

The idea is from an American Art Teacher who I follow for a while for her innovative and original activities, Jessica Hamilton. Here you can find her Instagram profile and her page on the famous website Teachers Pay Teachers Mrs Hamilton’s ART Class where you can find all her interesting suggestions.

Here below the worksheet I handout in the art class to practice the different oil pastel drawing techniques. Different effects can be obtained by blending two or more colors with light or heavy pressure, mix the colors with scumbling or stippling techniques, or with the sgraffito technique, obtained overlapping two colors and engraving the top layer.

Every student found an image with a spherical object and copied it using two or more oil pastel drawing techniques.

Here we have the finished works.