三年级美术下册第4课《自制颜料》课件2湘美版.ppt

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4自制颜料,凤仙花,在生活中你发现这种现象吗?,菘蓝花,矿物颜料 石青,板蓝花,廖蓝花,菘蓝花,在蜡染中经常会从植物的根,茎,叶中提取色素,用于布料的染色。“青取之于蓝而深于蓝”就是从菘蓝和廖蓝中提取青色。至今白族人仍用这种方法来染制印花布,分小组讨论:你从大自然中找来了些什么材料?如何利用将自己带来的材料制作出什么颜料呢?用小棒和小碗捣汁,用纱布包好或用过滤网挤压过出汁液。,边制作边用简短的文字填写研究表格,制作的颜料,制作的方法,遇到的困难,颜料的颜色,实验效果,难题我来解,团结力量大!,交流:每个小组长进行汇报总结,讨论解决遇到的困难。,你认为这两幅画中的色彩可以从哪些植物中提取?看谁想到的植物最多,最好。,活动二:用自己制作的颜料在组内共同完成一幅图画。,法国拉斯科洞穴壁画 史前艺术家都是用土和矿石制作出绘画颜料画画。,朱砂粉,再见,

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